I have an iPad. It has 2 cases - the nice and snug "Convertible Magazine Jacket" from Incase that stays on all the time and the Lady Damask from Slappa that I use when the iPad and I are steppin' out.
Something I haven't done yet is put a decal on my iPad. Mainly this is because I can't actually get the Incase case off my iPad. I actually have a really great one that a friend of mine sent me. It's the Golden Summer design from Smirkabout. I love the vintage and moody feel of the photo.
But if I didn't have the one from Smirkabout, I would definitely get excited about some of these designs from Etsy sellers. I found one of these through an article on iPad decals on Mashable and then went down a rabbit hole of iPad decals.
UFO iPad Decal by Stephen Edward Graphics
and
Tea for iPad by macdecalsdesigns