An Area Rug with a Color Selector Switch?

Thanks to a gentleman named Gregory A. Sotzing one day we may be able to change the color of our area rugs and other décor with the flip of a switch. In fact it seems it would be possible to have patterns or even pictures appear on cloth furnishings.

Sotzing, an associate professor of chemistry and polymer science at the University of Connecticut in Storrs, has developed a flexible electrochromic polymer that can change colors--and that will probably soon be able to produce images--in any fabric. The Free Lance-Star

Besides the obvious decorating applications of this product I can think of a few practical joke applications for images appearing on your area rug...