Joyrider Smileys FTW!

Bring some joy into the world not by having a baby, but with the Joyrider. This device will create illuminated smiley faces along the spokes of rotating bicycle wheels, thanks to a couple of electronic devices which clip onto the wheel spokes. They will first size up the rotation speed, where the LED lights will then go to work in order to create an illusion of a stationary smiley face. No idea on how much these cost though, but they recently went for £2000 at a charity auction. Hopefully future iterations will see more designs other than smileys?