(Batteries not included) A Bristlebot is a small robot made by combining a toothbrush head and a vibrating pager motor. The vibrations from the motor travel down the bristles and cause the brush to move and spin on flat surfaces. Build a Bristlebot in your home or classroom to teach basic engineering, motors, circuits, and physics concepts (i.e. balance principles). Adjust different parts by bending, twisting, and angling the chenille stems into different positions and see how it affects the movement and direction of your Bristlebot