‘ You will need: – Two toothbrushes (best works with angled bristles) – 1 AA battery -Micro Vibration Motor- ($3.99 at radio shack) http://www.radioshack.com/product/index.jsp?productId=2914700 – Scissors or plyers to cut toothbrushes Step 1: Cut the tooth brush heads with scissors or plyers Step 2: Roll up some duct tape and place it on top of… Continue reading Bristle Robot Tutorial for Children