The easy parts:

QTY 1, double gang box used for home wiring
QTY 1, Double blank cover plate, unbreakable or nylon
10ft, 18-2 speaker wire
2ft, 22ga wire 2 blue
2ft, 22ga wire 2 yellow
Qty 3, switches: Heavy-duty, standard size toggle switch. D.P.D.T., center-off, momentary both directions. Rated 20A @125Vac. 15/32" threaded bushing. Screw terminals. http://www.allelectronics.com/make-a-store/item/STS-79/DPDT-ON-OFF-ON-MOMENTARY-TOGGLE-SWITCH-20A/1.html
QTY 2, Banana plugs, one red, one black
QTY 30, #6 spade terminal, http://www.allelectronics.com/make-a-store/item/9106/-6-SPADE-TERM.-RED/-/1.html

Hard parts:
3 motors
3 propellers
Some way to connect the motor to the propeller