Over at Kit Kraft, an online craft supply shop (with a bricks-and-mortar shop on the other coast in LA), we stumbled on these mirror tiles. There is a variety of them that would be great for all sorts of home decor projects, from covering furniture to decorative wall surfaces:
The mirrored tiles come in rolls with an adhesive backing for ease of use. Choose from small, 1/2" x 1/2" mosaic up to a 2" square or rectangle. There are a few finishes available: straight up mirror, brushed aluminum, smoke, or even gold for some mega-bling.
Check out all of the available sizes and finishes at: Kit Kraft.