Lamp/Lamp

The mind-boggling Lamp/Lamp isn't actually a lamp. It's a cleverly designed 30-watt bulb with two sets of screw threads. Screw one end into an outlet, and it creates the optical illusion you see in the photo to the left. Turn it on, and watch as houseguests do triple-takes.

Source: 100per.comAdded: 11 April 2007