Back in grade school, there was always a competition between classmates to see who could make the best paper airplane. We all knew how to build a basic one, but they only flew so well. My friends and I would spend hours (and waste countless sheets of paper) making modifications and trying out new designs. What none of us were ever able to do was add an electric propeller to one.

If you want to add some power to your paper aircraft, you need look no further than this Electric Paper Airplane Conversion Kit. The motor clips to the nose while the propeller sticks out the back. To keep weight down, they chose to use a carbon fiber body. One 20-second charge will net you roughly 90 seconds of flight time. At $20, it would certainly be a fun way to pass notes around the office.