The iSkin Duo is a simple-yet-clever silicone iPad case. It comes in several colours, doesn't prevent your devices from being docked and has an embedded antimicrobial protection. Oh, and you can sanitise it by sticking it into boiling water.
The case keeps your iPad from smelling and looking like a gym locker because it has an antimicrobial product called Microban built into the silicone. But if you're super-paranoid about germs and messes, just boil the case. It's tough enough to take it.