heres a great way to make a bristle-bot out of a fan. Ingredients: Fan, Eraser, Tape, Toothbrushes
Step 1: Remove the Air Blowing Part
remove the shield thing and the propellor.
Step 2: Add Toothbrushes
take the bristly parts off the handles and tape them onto the base.
Step 3: Done
done. if it works enjoy the bristle bot you just made. if it doesnt work go make the traditional kind.