Update: New rivet file (V2) posted with tighter fit.
This is an iPhone 4s Case with gears attached to the back that you can turn for hours of fun. The thumb gear hangs over the edge of the phone right below the volume buttons. Everywhere I go, people are amazed with it.
The ring gear that surrounds the Apple logo is not physically attached to the phone case. It is held in by the tooth patterns on the surrounding gears! The large gear on the bottom turns to reveal the iPhone logo on the back of the phone as well. This is the coolest way to show off your iPhone pride.
This is based off my iPhone 4s Slim Case Blank. thingiverse.com/thing:51533
There is room below the large gear to customize the case with your name or logo.