Daniel Rozin is an artist who makes, among other things, mechanical mirrors like pompom mirror and penguins mirror [more inside]
"[Helene] Meldahl said that in the mornings she used to leave small drawings on the bathroom mirror for her roommate. One day she turned a drawing into a selfie and posted it online. She enjoyed doing it, and people enjoyed looking at it, so creating more seemed like a no-brainer." (via)
This is what happens when you build a cube out of one-way mirrors. From an industrial design collective called Numen/For Use.
Craigslist Mirrors (SLTumblr)
Dynamic target tracking camera system keeps its eye on the ball - motorized mirrors track a moving object of interest every thousandth of a second, reflecting its image into a camera
The Edge Effect. Daniel Kukla spent March of 2012 as an artist in residence at Joshua Tree National Park.
Check out this "mirror", its computer controlled and made out of wood. I really want one of these, watch the non-streaming video to view it in action.