DJ Baggadonuts created a mosaic using Black 1 x 1 Modified Bricks with Headlight and gem pieces that can be lit up from the back like a LightBright. Wonderful concept! And beautiful MOC of his daughter.
UPDATE( 03/22/09): Looks like DJ Baggadounuts has published pictures of an updated mosaic MOC of his daughter. I can't emphasize this enough, this is such a wonderful concept!