Larry Kagan

Here is an artist whose works are arranged objects in 3D space to create recognizable 2D shadows.

He uses steel, light and the resulting shadows to make pieces of art. Except rather than just cutting a single solid 2D shape out of metal and projecting a light onto it, he creates abstract lighty & airy, 3D sculptures that only reveal what they are once the light is turned on. http://www.arts.rpi.edu/~kagan/