Here’s how to make a RC car from a couple old 10$ cordless screwdrivers, from I Make Projects” This is a radio-controlled vehicle made from two cheap, cordless power tools with wheels attached. The electrical control part consists only of an old R/C controller, two servos, and 4 microswitches. Since I had most parts already in my part bins, it cost me about 20$ to build.” [via] – Link.