The bristlebot, part mechanical robot and part toothebrush dates back to 2007, when the folks at Evil Mad Scientist Laboratories came up with a novel way to utilize a few items laying around. The basic materials are an old toothbrush (cut to size), a motor from an old pager (you can find these at electronics parts stores) and a battery. Tape them together and you have a tiny robot that moves about – but won’t clean your teeth.
The bristlebot is derived form other types of vibrating robots or “vibrobots”. These move about from the vibrating motion of their motors, but have no sensors or “brains” like other robots. They are fun to build though, and come in many shapes and sizes. Info on how to make this bristlebot can be found here.