Step 1: Supplies
A watch battery.
A pager motor with its casing.
A small piece of foam tape. (double sided)
First cut the head off the toothbrush with the wire cutters. (the toothbrush i used was made of some sort of soft plastic so the wire cutters worked really well)
Step 2: Adding the Motor
Then add the pager motor on the end of the toothbrush
Step 3: Adding the Battery
And your done! If it works it should move when you connect the wires.