Little 1.2VDC Toy Motor
On your marks, get set, GO BUY THESE MOTORS. ONLY 85 CENTS EACH. APPROXIMATELY 1" x 1.5". 1.2 VDC. IT GOES FAST-ISH. HAS LITTLE TINY SHAFT AND TWO SOLDER TABS.
*Seriously, only 1.2 VDC. Trust us. Unless you put 3 VDC through it to show that it works. We would not recommend doing that for an extended period of time. *cough cough cough*