They can deploy or retract with the push of a button and they are also razor sharp.
The perfect 'toy' to stab yourself...
If you have seen Pulp Fiction then you'll understand, if you haven't then I'm sorry for you..
One of the most internationally known and appreciated Japanese anime ever (many consider it to be "the greatest anime of all time") gets a stunning live action trailer 100% made by fans.
Alex Chacon rode his bike (over 200,000+ km, crossing 75+ borders) and took selfies with a GoPro on a stick during his 600-day trip around the world. Just another reminder that our lives are boring..
Here's the original if you want to compare.
He starts with Jason Derulo, then AC/DC, Ray Charles, the Bee Gees, White Zombie, Hootie & The Blowfish, Aventura, Slayer, Bob Marley, The Beach Boys, Will Smith, Kataklysm, System Of A Down, Slick Rick, Bone Thugs-N-Harmony, Scatman John, Barry White, Josh Groban, Muse and finally Cab Calloway.
This guy set up a camera in his room and performed the same dance routine to Jamiroquai's 'Canned Heat' every day for about 100 days, this is the result, time-lapse style. Note that the first 30 seconds are from Napoleon Dynamite.