A backplate for the Leverage i5 iPhone 5 case from http://www.graftconcepts.com.
Designed to take a standard 1/4-20 UNC tripod mount allowing connection to most tripods and camera mounts using this standard.
The design has not been print tested and I suspect a threaded insert might prove a more realistic and durable option than the thread currently printed into the plastic. Also considering putting a second mount point to the base of the phone to allow mounting in the vertical orientation for the weirdos that want to take photos that way round.
It says 'say cheese' because if you're too lazy to hold the camera you're probably too lazy to speak either. And you would choose the colour best contrasting with the back of your iphone to make it nice and readable.