I just saw that little 'momentary contact' switch...which reminds me... the door bell switch from the hardware store is about a buck...for a door bell, drill a 5/8" hole, pull the wires out and screw them to the switch, push the unit into the 5/8" hole, and you're done. 5/8" diameter. But Radio Smack has those little push button switches too....three styles. #1] push on and it stays on, push again and it goes OFF; #2] push on, and it only stays on while you hold it...like a door bell, let go and it goes off; #3] push IN and the circuit goes OFF ! Let go, and the circuit comes ON and stays ON, like a refrigerator light switch on the door of the frig. Those little guys are only about 5/16" diameter by 1/2" long, and epoxy right to the motor of your starter. Light weight too. No cumberson wires and foot pedal to lug around.