For those that want another color then just a regular black case.
http://www.colorwarepc.com/content.aspx?id=29
Evidently Colorware is approved by MS, SCEA, and Nin because they offer extended warranties on the consoles they sell.
It's not a vinyl skin, it's actual electrostatically applied epoxy resins-paint/plastic. It akin to automotive finishes.
So it should be strong enough to handle the acids of human hands since as you notice they will color the controller(s) for you as well.