While I wouldn't use these in a home decor situation, I still drool over the skulls at Skulls Unlimited. Honestly, how cool are these? When I first saw the link on Pharyngula, I could not believe it. An actual online store where you can order actual, bonified skulls?
Okay, so, some of them are fake. But a lot of them are real. Now, tell me, don't you just want to rush out and purchase a nifty alligator skull?
I would link you to the great alligator skull, but they seem to navigate in frames of some sort with a static address. Therefore, I'll just leave you at this: try and find the chihuahua skull. It's in mammalia, carnivora, domestic dog breeds. You will be so glad you did!