I'm trying to find a plastic protector for the back of my iPod touch. Basically a piece of plastic, like those that come on the screen of the iTouch, or the iMac, or any other consumer electronic with a glossy screen. But I want one tailored for the back of the iPod touch, so that it doesn't get scratches in it. Basically I want to have the chrome back, without the scratching potential, so it needs to be as invisible as possible. Ideas?