No rowdy highschool classroom is complete without a soaring paper airplane, but to make the most of your flimsy little aircraft, you should invest in the PowerUp Electric Paper Airplane Conversion Kit designed by Shai Goitein. The electric propeller slips onto your boring paper airplane to give you over 30 seconds of flight for a single charge (the battery recharges in 20 seconds just in time for the next flight). The propeller clips to the front of the plane with the prop sticking out of the back. Hold the battery charger up to the front of the of the device and hear the motor winding up, then release the charger and watch your paper beauty fly. The propeller and body is made out of carbon fiber (a durable yet light weight material) and all you have to supply are 3 AA batteries and the best paper airplane design you can come up with.