I wonder if there's not some messed up technical procedure that could make it happen, though. People get their eyes tattooed, actual skin removed so that their designs look more like red stencils, and one dude even had his nekkid girlie tat injected so the breasts have dimension. Maybe they could implant a motorized chip under your skin that wobbled around like a CD that hasn't stopped spinning yet. Or not move, but project the ying & yang symbol so you can see it through the skin, and the image on the chip itself is moving.
There are crazy cosmetic surgeries out there, you know ppl are dreaming this up.
*E*