Forgot about this one, this is a lithophane, you can do most any picture. It is carved into corian and really looks like nothing special until it is backlit, then the carving pops to life as a lit up picture.
Probably about 10x8", has a remote which you can use to adjust brightness and flashing fading patterns [also color, this one I think I did with just white LEDS, who wants to see a blue Hitler ?