Designer Yuko Taguchi has created a lamp that looks like a joke, but in fact serves a purpose. Her Wind Up Lamp does just that as the key is both a switch and a timer. It runs by a spring-driven generator which produces enough power to turn on the bulb. Once it winds down, the light goes out. Although only a prototype, Yuko says that this would be a terrific device for those who read in bed but fall asleep before switching their lamps off. We also think this would definitely be a viable green alternative to current electric night lights.