Tuesday, July 27, 2010

The Latest from Boing Boing

The Latest from Boing Boing

Link to Boing Boing

Rattan Moebius strip bench

Posted: 27 Jul 2010 04:42 AM PDT

Lampshade made from X-rays

Posted: 27 Jul 2010 04:43 AM PDT


Swedish design student Sture Pallarp created this "X-ray lamp" as a school assignment, incorporating real X-rays in to the lampshade for a lovely effect. With digital radiography becoming the norm, there's a limited window to produce this kind of thing: get cracking!

X-ray lamp (via Street Anatomy)



What "curated computing" can and can't deliver

Posted: 27 Jul 2010 04:19 AM PDT

My latest Guardian column, "Curated computing is no substitute for the personal and handmade," looks at how a curated computing experiences (like the hand-picked apps in the Apple App Store and the Google Android Marketplace) offer undeniable value, but can be configured to be coercive traps or helpful starting points:
Two categories in particular won't ever be fulfilled by a curator: first, the personal. No curator is likely to post pictures of my family, videos of my daughter, notes from my wife, stories I wrote in my adolescence that my mum's recovered from a carton in the basement.

My own mediascape includes lots of this stuff, and it is every bit as compelling and fulfilling as the slickest, most artistic works that show up in the professional streams. I don't care that the images are overexposed or badly framed, that the audio is poor quality, that I can barely read my 14-year-old self's handwriting. The things I made with my own hands and the things that represent my relationships with my community and loved ones are critical to my identity, and I won't trade them for anything.

Second, the tailored. I have loads of little scripts, programs, systems, files and such that make perfect sense to me, even though they're far from elegant or perfect. There's the script I use for resizing and uploading images to Boing Boing, the shelf I use to organise my to-be-read pile, the carefully-built mail rules that filter out spam and trolls and make sure I see the important stuff. I am a market of one: no one wants to make a commercial proposition out of filling my needs, and if they did, your average curator would be nuts to put something so tightly optimised for my needs into the public sphere, where it would be so much clutter. But again, these are the nuts and bolts that hold my life together and I can't live without them.

Curated computing is no substitute for the personal and handmade

Free, CC licensed Steampunk RPG: Lady Blackbird

Posted: 27 Jul 2010 02:35 AM PDT


Lady Blackbird is a quick-playing steampunk tabletop RPG that's free to download and Creative Commons-licensed for your sharing and remixing pleasure: "Lady Blackbird is on the run from an arranged marriage to Count Carlowe. She hired a smuggler skyship, The Owl, to take her from her palace on the Imperial world of Ilysium to the far reaches of the Remnants, so she could be with her once secret lover: the pirate king Uriah Flint. HOWEVER, just before reaching the halfway point of Haven, The Owl was pursued and captured by the Imperial cruiser Hand of Sorrow, under charges of flying a false flag."

Lady Blackbird: Adventures in the Wild Blue Yonder (Thanks, Sage! via Submitterator)



UK govt proposes volunteer "police reserve"

Posted: 27 Jul 2010 02:01 AM PDT

As part of a set of major cuts to police budgets, the UK government has floated the idea of supplementing police with volunteer militias of "community police" who will get to tell their neighbours what to do:
The scheme was first raised in a Conservative pre-election policy document which talked of creating a "new cadre of police reserves".

The consultation paper says that neighbourhood policing is key to David Cameron's "big society ... we want more active citizens taking part in joint patrols with the police, looking out for their neighbours and passing on safety tips as part of neighbourhood watch groups or as community crime fighters," it says. May said she wanted to see more special constables, whose numbers have plummeted from 67,000 in the 1950s to 15,000 today.

But the paper adds that they want to go further and explore new ideas to "unlock the potential of police volunteers in the workforce, for example, as police "reservists".

Cameron's answer to budget cuts: get public involved in 'DIY' policing

(Image: Judge Gallagher, a Creative Commons Attribution Share-Alike (2.0) image from 29138572@N00's photostream)



Idea to prototype to tool: how a Leatherman comes to be

Posted: 26 Jul 2010 10:20 PM PDT


Popular Mechanics has a great little slideshow showing the various intermediate steps that went into designing the original Leatherman tool, taking it from napkin doodle to TSA confiscata: "The prototype that Leatherman patented combined his dual-action pliers with an integrated locking-clamp feature. Every knife- and tool-maker he approached rejected it."

The Invention of the Leatherman: Patent Gallery (via Make)



Insectile leather mask from Bob Basset

Posted: 26 Jul 2010 10:17 PM PDT

Street-Fighting Math: down and dirty guide to approximation and problem-solving

Posted: 27 Jul 2010 02:35 AM PDT

Street-Fighting Mathematics looks like a fun read: it's a Creative Commons-licensed math textbook that teaches approximation and "down-and-dirty, opportunistic problem solving." It's based on a MIT course taught by the author, Sanjoy Mahajan.
In problem solving, as in street fighting, rules are for fools: do whatever works--don't just stand there! Yet we often fear an unjustified leap even though it may land us on a correct result. Traditional mathematics teaching is largely about solving exactly stated problems exactly, yet life often hands us partly defined problems needing only moderately accurate solutions. This engaging book is an antidote to the rigor mortis brought on by too much mathematical rigor, teaching us how to guess answers without needing a proof or an exact calculation.

In Street-Fighting Mathematics, Sanjoy Mahajan builds, sharpens, and demonstrates tools for educated guessing and down-and-dirty, opportunistic problem solving across diverse fields of knowledge--from mathematics to management. Mahajan describes six tools: dimensional analysis, easy cases, lumping, picture proofs, successive approximation, and reasoning by analogy. Illustrating each tool with numerous examples, he carefully separates the tool--the general principle--from the particular application so that the reader can most easily grasp the tool itself to use on problems of particular interest.

Street-Fighting Mathematics (Thanks, Musicman! via Submitterator)


Oil spill glows under UV light

Posted: 26 Jul 2010 08:03 PM PDT

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Maybe there's something for hippies to love about ecological disaster, after all. Chris Combs, photography editor at National Geographic News, took these amazing shots while on assignment in the Gulf of Mexico. Via Submitterator, he says:

...researcher Ping Wang pointed me towards his grad student's work with UV light. Turns out that the oil glows bright, head-shop fluorescent orange under UV light. Rip Kirby's ultra-powerful $1800 "Klingon Death Ray" ultraviolet spotlight lit up every particle of oil-stained sand, even in seemingly clean areas, and our footprints showed up Day-Glo orange.

This isn't just for "woah, dude" value. Applying UV light to contaminated beaches is also a clever way to spot—and clean up—oil that might otherwise go unnoticed by notoriously flimsy human eyes. You can read more—and see more pictures—in Combs' photo essay.

Wikileaks: Q&A with Jacob Appelbaum on "The Afghan War Diaries"

Posted: 26 Jul 2010 08:41 PM PDT

Earlier today, I spoke with Jacob Appelbaum, a volunteer with the WikiLeaks project whose work in other projects related to tech and human rights have been blogged here on Boing Boing over the years.

As reported on Boing Boing and widely elsewhere, Wikileaks have released a massive archive of secret US military documents related to the war in Afghanistan, unprecedented in scope. The archive spans a 6-year period from 2004 to 2010, encompassing more than 91,000 documents and 200,000 pages. The White House, Pentagon, and Department of State have condemned the leak, with various spokespersons describing it as a breach of federal law, a "criminal act," and describing Wikileaks as a threat to US national security. I spoke with Appelbaum, a longtime friend of mine, about why he and other Wikileaks volunteers disagree. —XJ

Boing Boing: We're told that there are more documents from this archive yet to be released by Wikileaks, some 15,000 of them as reported. Some have speculated that these could relate to Iraq. Can you comment more?

Jacob Appelbaum: The 15,000 documents are part of the set of Afghanistan documents. They are being redacted for harm-minimizing purposes as requested by our source, and will be made available as is applicable with respect to the relevant security concerns.

Boing Boing: What do you think of the White House reactions so far to the "Afghan War Diaries" leak?

Jacob Appelbaum: It's clear that the White House is attempting to shoot the messenger. These documents provide concrete evidence of events that have occurred during the last six years of the Afghan war.


Boing Boing: The Department of Defense has called Wikileaks a "national security
threat."

Jacob Appelbaum: Wikileaks is not a national security threat; we are an
international security promise.


Boing Boing: What do you mean by that?


Jacob Appelbaum: We promise our sources that we will get their
information to the public. We have released information about what is
actually happening in Afghanistan. We are telling you the facts as the
US military saw fit to document them. We are telling you these facts
because they document an important first-hand perception of everyday
life in Afghanistan that our source felt important to show the world. It
clearly meets with our submission criteria and based on the reaction,
it's obvious that we've done our job as we've promised.


Boing Boing: What of the criticism from some commentators, and from the US defense
spokesperson yesterday in the initial response, that these documents are
"old news," because they only cover from 2004, when Bush was in office,
through late 2009, before Obama announced a policy change for Afghanistan?


Jacob Appelbaum: The contents may be old news to the White House but it
was very clearly not available to the American public and actually any
public with an interest in the topic before our release.


To suggest that it only covers Bush is to misrepresent the very clear
facts. The document archive goes all the way up to the end of 2009. The
White House tried to spin this by saying it goes only until December
when the Obama administration announced a policy change. However, there
is an overlap - this is a document cache that spans both of their
presidencies and it includes information after Obama enacted the policy
change in early December 2009.


Boing Boing: What do you think will happen as a result of the leak? Will there be
policy change?


Jacob Appelbaum: It's only been a single day and the entire world is talking
about this information. The collaborative effort put into the initial
analysis of these documents is unprecedented, and the foundation laid by
New York Times, Guardian and Der Spiegel in respect to initial analysis of the material
will certainly serve as a sound basis for further investigations by the
media, historians and researchers, as well as general public scrutiny.


People in the United States of America have the ability to
democratically change this situation if they are unhappy with the truth;
they now have information that will assist them in having a clearer
picture. Perhaps they will demand more transparency and more
accountability. It is clear that they will find out how the war is
actually going, and see what they're financing. This isn't unique to the
United States: it impacts the people of every country with troops in
Afghanistan. The world has wide-open eyes. Together, we can make
better, more honest decisions.


Furthermore, the people of Afghanistan are not shocked by this
information. Nobody needs to tell them what the conditions are like on
the ground. They don't have reports with this level of specificity,
rather they live with everyday terror and fear. In some cases, we can
see more clearly now that the Taliban are doing terrible things, and
they're far better equipped than the "camel jockeys" they're portrayed
as in the American media. These are scary guys with scary capabilities.
Why aren't we being told this truth regularly after nine years? Why would
the US government hide this from the world? Why are the rest of the
governments complicit in this silence?


Additionally, it sounds like our allies are the ones supplying
them with some of those capabilities. Some wings of the US government
were apparently aware of that. But I'd wager that most
Americans were unaware. This strongly suggests a need for policy
change. How can the people of the US fund another situation that is not
unlike when America was using Afghanistan as proxy during the Cold War?
Didn't we learn our lesson the first half dozen times we did something
like this?


If not, let's learn it now.

(photo courtesy Jacob Appelbaum)

Home-made laser runs on exhaled breath

Posted: 26 Jul 2010 07:35 PM PDT

YouTube user magx1 builds a lot of home-made gas lasers, running electric current through sealed tubes filled with various gases. When you do that, you get the gas atoms all riled up and their electrons absorb energy. Eventually, that energy gets released in the form of directional, highly focused light—a laser. There's a bit more to it than that, but you've got the idea.

One type of laser magx1 builds is called a carbon dioxide laser, though it actually contains a mixture of carbon dioxide, nitrogen, hydrogen and helium. In this video, the carbon dioxide in the mix is coming from his own breath.

By exhaling into my 'supply' balloon, I was able to get pretty good results considering! Unlike a 'proper' laser mix of CO2, N2, and He; the 'breath' trick appears to have a much narrower pressure range over which lasing will occur. But I like it anyway - it doesn't get much more DIY than this!

Magx1 doesn't provide a lot of detail on how he built this laser, but you can find a lot of good information at The Home-Built Carbon Dioxide Laser FAQ. Bill Beatty—who suggested this video through the Submitterator—says Magx1 is a guy named Jarrod Kinsey, and that he has a site dedicated to laser building.

I know why the vampire sparkles, alas ...

Posted: 26 Jul 2010 06:03 PM PDT

In what may possibly be the best fantasy fanwanking ever, writer Kay Holt presents a creepily dead-on theory explaining the characteristics of Twilight-series vampires (up to and including the sparkliness) via revised taxonomy. Ladies and gentlemen, vampires are insects.

Remix of scenes in Mad Men of people smoking cigarettes

Posted: 26 Jul 2010 05:20 PM PDT

The latest creation from Whirled is this video of people smoking cigarettes in Mad Men. They write:
This video will have one of two results. This repetitious, perfunctory and seemingly pointless act of inhaling smoke may turn you off to smoking cigarettes. Or, the fact that this repetitious, perfunctory, and seemingly pointless act is carried out by such debonair, dashing human beings will make you run to your corner store and chimney down a carton before dinner. Either way, advertising works.
Cigarettes or not, I just love the aesthetics of this show. And the music in the background.

How to draw robots

Posted: 26 Jul 2010 06:41 PM PDT

Images I 51T931L7Mml. Ss500

I picked up a fun full-color book on Saturday called Robots! Draw Your Own Androids, Cyborgs & Fighting Bots, by well known animation designer and comic book cartoonist Jay Stephens. It's only 64 pages, but it's packed with tips and examples of whimsical robots, with lots of examples of limbs, bodies, heads, control panels, sensors, etc.

Stephens-Style-Bot Using his examples as a guide, I quickly drew a robot of my own. It doesn't capture the charm of Stephen's work, but I plan to keep working at it!

I also learned that Stephens has two similar books for sale: Monsters!: Draw Your Own Mutants, Freaks & Creeps and Heroes!: Draw Your Own Superheroes, Gadget Geeks & Other Do-Gooders. They are a bargain at just $5.95 each. I just ordered both of them!

Robots! Draw Your Own Androids, Cyborgs & Fighting Bots

Video Game Art Gallery

Posted: 26 Jul 2010 04:07 PM PDT

gameoverheart.jpgFrenchiart.com's Press Start! flickr set is all about video games and, apart from a particularly odd Super Mario or two, appears to be mostly harmless. Pictured left is Game Over, by Christine Daigle, on offer for just $150. Sorely tempted! Gallery [Flickr] Thanks, Maskinn! Via Submitterator.

Tickle me Melmo, foul-mouthed Mel Gibson-headed plush toy

Posted: 26 Jul 2010 04:13 PM PDT

If Mel Gibson was a talking plush toy...

(Thanks, hyAnis! Via)

Caterpillar torture porn

Posted: 26 Jul 2010 03:14 PM PDT

caterpillartorture.jpg

Wired's Erin Biba brings us this image of a caterpillar literally bursting with parasites. Taken by Flickr user sugarpond, this moment of sheer horror is probably the handiwork of one of several species of wasps that lay their eggs inside caterpillar bodies.

U.S. Senate passes 'libel tourism' bill

Posted: 26 Jul 2010 03:28 PM PDT

You just have to look at certain British newspapers to see see why the establishment there clings for dear life to its draconian libel laws. But with 'libel tourists' using English courts to attack enemies abroad--even if one has no assets in the U.K., its court verdicts can be 'domesticated' elsewhere--the threat to free speech in the U.S. has moved congress to take action. From the Committee to Protect Journalists:
This week, the U.S. Senate unanimously passed a bill shielding journalists and publishers from "libel tourism." The vote on Monday slipped past the Washington press corps largely unnoticed. Maybe it was the title that strove chunkily for a memorable acronym: the Securing the Protection of our Enduring and Established Constitutional Heritage (SPEECH) Act. Journalists and press freedom defenders outside the United States did, however, pay attention to the legislation, which they hope will spur libel law reform in their countries.
U.S. Senate passes 'libel tourism' bill [CPJ] (Thanks, David Carroll! Via Submitterator)

Arthur C. Clarke predicted satellite TV and GPS in the 40s and 50s

Posted: 26 Jul 2010 02:59 PM PDT

4830422022_2e3dfd5384_b.jpg

Above, a letter written by Arthur C. Clarke in 1956 predicting, quite accurately, aspects of the future of communications.

Link [via Letters of Note via dvice]

Boing Boing Submitterator!

Posted: 26 Jul 2010 08:45 PM PDT

submitterator600.jpg

Every day, we receive hundreds of submissions of links you'd like to share with the Boing Boing universe. We're deeply thankful that you take the time to turn us on to the anomalies, curiosities, and eyebrow-raisers that you find in your online travels! But the sheer volume means that even the best often go unposted. So to make the submission process easier and an order-of-magnitude more fun, we've created the Submitterator! Think of it as a public submissions form: every link you submit is shared with everyone else to check out instead of vanishing into the dark night of the BB inbox. Of course, we'll be keeping a constant vigil on the Submitterator for possible front page posts. Meanwhile, you can also comment on everyone else's submissions, vote them up or down, and soon reTweet and Facebook Share them.

To use the Submitterator just hit "Submit a link" and have at it. (You'll need to log in using your regular Boing Boing username.) Keep your text and any excerpt short and snappy. If you include a URL, your submission headline will link to it. The best headlines are descriptive rather than punny. If you like what someone else submitted, click +. If you don't, click -.

(Of course, for submissions you'd like to keep private you can still use the traditional form.)

We hope that the Submitterator will become a place for all of us to take a wider view of wonderful things and share our individual excitement with the Boing Boing community.

We've wanted to build the Submitterator for several years. We're thankful to our launch sponsor, Zync from American Express, for helping us finally make it happen. And it wouldn't have been possible without the tremendous talent of our unstoppable developer Dean "Dino" Putney (pictured) and unbreakable managing editor Rob Beschizza. Of course, thanks also to super sysadmin Ken Snider for keeping the wires untangled.

Now, please join us and submit to the Submitterator!

Spotted a bug? Please send email to Dean at boing boing dot net, and be sure to tell him what browser and platform you're on.

5-year old girl accidentally kidnapped in carjacking

Posted: 26 Jul 2010 02:42 PM PDT

A 5-year old girl was accidentally kidnapped this morning when someone carjacked her dad's Cadillac while he was paying for gas at a Richmond, CA gas station. The girl — and later the car — were found abandoned on two separate street corners nearby.

Department of Defense Taking It Seriously

Posted: 26 Jul 2010 02:16 PM PDT

takingitseriously.jpg Very seriously indeed. Amazingly, the U.S. Department of Defense, with only 9k twitter followers, has only a fraction of Wikileaks' veritable horde of retweeters. Internet fail! On the other hand, its logo is much better-drawn. Previously.

A visit to Spirited Away creator's museum in Japan

Posted: 26 Jul 2010 02:39 PM PDT

Ghibli-Museum08

(In July, I went on a family vacation to Japan. Here are my posts about the trip: Watermelons in the shape of cubes, hearts, and pyramids | What happened to the Burgie Beer UFO of Melrose Avenue?)

A couple of days after we arrived in Tokyo, we visited the Ghibli Museum. It's in a suburb of Tokyo (we had to take a train and then a bus to get there) and was designed by the famous animator Hayao Miyazaki (Spirited Away, My Neighbor Totoro, Ponyo, Kiki's Delivery Service). The museums has exhibits about animation and Miyazaki's movies.

The museum isn't very large, but it's beautiful and packed with lots of interesting hands-on exhibits. Unfortunately, photography of the inside of the museum is not permitted. I did sneak one photo of a recreation of an animator's office: Ghibli-Museum07

Interestingly, none of the stuff was nailed or glued down, and you could walk all around the exhibit. Some people were even picking up the props and handling them. I can't imagine a museum like this in the United States -- there would have been a glass wall to keep visitors from pilfering all the cool books, toys, props, and tools in the exhibits.

More photos and remarks after the jump.


Our tour guide led our family and about 10 other English speakers through the museum. She was very nice and a big Miyazaki fan.


Ghibli-Museum01



She explained the significance of the emblem on the gate, but I forget what it is.


Ghibli-Museum02



My favorite part of the museum was a 3D zoetrope of the characters from My Neighbor Totoro. It consists of a bunch of painted clay figurines arranged on a turntable. Each figure is slightly different from the one next to is, and when the table is rotated and illuminated with a strobe light, the resulting animation is magical - the figurines come alive.

You can watch a few videos of the Ghibli zoetrope on YouTube, but they aren't very clear. This Toy Story Pixar zoetrope is identical to the Ghibli zoetrope (except for the characters), and is much clearer:



This was some kind of monument with runes cuneiform stamped into it. I assume it's from a Ghibli movie I haven't seen.



Ghibli-Museum10



Ghibli-Museum09



The exterior of the building. It's not apparent here, but parts of it had a Gaudí vibe.


Ghibli-Museum03


Ghibli-Museum06



Sorry for the glare, but here's a giant Totoro and some dust motes near the entrance to the building.

Ghibli-Museum05


Note the pump bottle of hand sterilizer in the photo below. I saw these all over Japan. They are concerned about the spread of bird flu. Jugs of hand sterilizer were much easier to find in Japan than public trash cans. Japan has launched a "take your garbage home" initiative, which means you are supposed to carry food wrappers and water bottles with you until you get home.

Ghibli-Museum04

Vaudeville punk from Aeon Now!

Posted: 26 Jul 2010 01:24 PM PDT


Vaudeville-from-hell circus punks Aeon Now! from Cottage Grove, Oregon. (Thanks, Ryan Powers!)

When babies shaved

Posted: 26 Jul 2010 11:25 AM PDT

The neuroscience of break-ups: it's like craving cocaine!

Posted: 26 Jul 2010 11:59 AM PDT

A study published in the July issue of the Journal of Neurophysiology found that romantic break-ups activate parts of the brain that are associated with addiction cravings:
"This brain imaging study of individuals who were still 'in love' with their rejecter supplies further evidence that the passion of 'romantic love' is a goal-oriented motivation state rather than a specific emotion" the researchers concluded, noting that brain imaging showed some similarities between romantic rejection and cocaine craving. "The findings are consistent with the hypothesis that romantic love is a specific form of addiction."

The study also helps to explain "why feelings and behaviors related to romantic rejection are difficult to control" and why extreme behaviors associated with romantic rejection such as stalking, homicide, suicide, and clinical depression occur in cultures all over the world, the researchers wrote.

I think most of us have experienced this feeling at one point in our lives, but it's interesting to know it can be backed up by science.

Anguish of romantic rejection may be linked to stimulation of areas of brain related to motivation, reward, and addiction [Science Daily]

Robot learns to flip pancakes

Posted: 26 Jul 2010 11:07 AM PDT


Engineers from the Italian Institute of Technology taught a robot arm how to flip pancakes. The robot mastered the skill through kinesthetic learning, repeated movement. I think it's very endearing, especially when the robot misses. From the project page:
After 50 trials, the robot learns that the first part of the task requires a stiff behavior to throw the pancake in the air, while the second part requires the hand to be compliant in order to catch the pancake without having it bounced off the pan.
Programming-by-demonstration (Thanks, Ken Goldberg!)

Birdhouses made from VHS and cassette tapes

Posted: 26 Jul 2010 11:05 AM PDT

Dscn0426 Dscn0425
BB reader Basile Adamantides says, "I found those things in Brussels (Belgium) today, nailed onto trees. Perhaps you will appreciate." Oh, I do. Click the images to see them larger. (Thanks, Basile!)

Pigeon crap interrupts Kings of Leon concert

Posted: 26 Jul 2010 10:46 AM PDT

I'm excited to see Kings Of Leon at the San Francisco Outside Lands festival in three weeks. (Stay tuned to BB for a special Outside Lands contest!) I hope the pigeons avoid Golden Gate Park that day though. Apparently, Kings Of Leon cut their St. Louis concert short on Friday after a pigeon poop attack. From The Telegraph:
The bassist Jared Followhill had already been hit several times during the first two songs, including in the face.

He said: "We had 20 songs on the set list. By the end of the show, I would have been covered from head to toe."

The band's drummer, Nathan Followill wrote on Twitter, the microblogging website: "So sorry St. Louis. We had to bail, pigeons s***ing in Jared's mouth and it was too unsanitary to continue.

"Rock band Kings of Leon forced off stage by pigeon droppings"

Spinflyer spin top in Boing Boing Bazaar

Posted: 26 Jul 2010 10:10 AM PDT

Spinflyer-Spintop

New in the Boing Boing Bazaar / Makers Market: tiny spin tops. They're machined one-at-a-time by Franz Tommasi of California and cost just $6.

This spin top is a simple kinetic desk toy that blends a vintage theme with a new design. It can be spun upright for more predictable orbital spins or inverted for random path behavior. It works on any desk or table top.

SpinFlyer spin tops deliver long duration spins and smooth performance. The S25 spin top is carefully machined in small numbers by me and is not injection molded or mass produced.

Features
• long duration spins
• smooth performance
• optimal weight distribution
• low center of gravity

$6 Spinflyer spin top in Boing Boing Bazaar | Spin top with holder for $12

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