Electric Paper Airplane Conversion Kit
If only we'd had this in middle school. The Electric Paper Airplane Conversion Kit ($20) is exactly what it sounds like — a motor-driven propeller for your dead tree creation that can extend flight time up to 90 seconds, clips easily onto the nose of your plane, is made from carbon fiber so as to not weigh things down, and recharges in 20 seconds off the included, three AAA-powered charging box, getting you back up and flying in as little time as possible.