Here's how to make a wireless, cheap Bristle Bot.
Step 1: Gather Supplies
You will need.
1 Electric Toothbrush
1 Scrub Brush
Needle Nose Pliers
Step 2: Take Apart the Toothbrush
Take off the bottom of the toothbrush and save it for later. Then poke the needle nose pliers in there and pull out the motor.
Step 3: ALmost Done
Now duct tape the pieces together so that it turns on when you flick the switch.
Step 4: Zip Tie It On
Now zip tie the motor on the scrub brush where you want it to go. Ta da! You have completed your very own Bristle Bot and I my first Instructable!
Step 5: A Video
Here's a video of it running.
Thanks for the tip Mcguyverzboss!