Vibrobots are pretty squirrelly little guys, easy to make by yourself and fun to watch. BrushBots are a sort of super-sized vibrobot, with multiple toothbrush “legs.” Stick them in a paper floor arena with some drops of paint, and watch them create a piece of artwork for you:
[Direct Link]
Designed by Christian Cerrito, BrushBots are simple, cheap, and do a much better job with abstract painting than I ever could. The paths they make aren’t purely random; as the bots cross over the drops of paint, the viscosity causes them to slow down and change direction, helping the piece evolve. Not bad for a hacked up toothbrush and a pager motor, I’d say.
[ Brush Bots ] VIA [ Cool Hunting ]
http://www.botjunkie.com/2008/05/16/bots-create-art-from-toothbrushes/