Interactive artist, Danny Rozen, has done just this, creating a mirror out of 830 wood blocks - but would you put one on your wall?

a tiny camera gathers light and shape data, before sending it to a computer that processes it and uses hundreds of tiny electric motors to shift the wood blocks into the image in front of the device. Subtle gradations of shade are achieved by both the natural grain of the wood and the angle at which they are displayed, casting shadow if necessary.

The result is a sort of ghostly image, imprinted upon the wooden pixels like a haunted trace and just like a real mirror the image moves in real time

By using a naturally unreflective surface to create reflections, Rozen highlights not only the human beings incredible capacity for technical accomplishment, but the fact that every object in the world might reflect, in some sense, the image of those who have crafted, used and sold it.