This seems pretty cool:
http://osxdaily.com/2012/01/08/see-the-inside-of-imac-ipad-and-iphone-with-these-x-ray-wallpapers/
The iPhone one could make a cool lock screen.
http://osxdaily.com/2012/01/08/see-the-inside-of-imac-ipad-and-iphone-with-these-x-ray-wallpapers/
The iPhone one could make a cool lock screen.