My Daughter Robin Teaches Us How to Build a Bristlebot: DIY Robot Fun in Minutes! #ScienceatHome A bristlebot is a simple robot made from a toothbrush head (bristles facing down), a vibrating motor, and a battery. When the motor vibrates, the bristlebot moves around on flat surfaces due to the vibrations causing it to skitter or spin. It's a fun and educational project that introduces basic robotics concepts and is easy to assemble with household materials. | Chemical Kim