The Bristle Bot is like a Hex bug but you get to make it your self!
You will need
3. One CR2032 battery
4. One small vibrating motor
Cut the head of a tooth brush of with scissors.
Put tape on the head of the tooth brush like in the picture.
With tape stick the vibrating motor onto the battery like in the picture.
Put the battery and motor on the tooth brush head and have the blue wire sandwiched between the tooth brush and the battery.
To start: tape the red wire to the top of the battery.