Just build and pop your iPhone in.
At first, Mike Kim made a camera like object of legos, and pretended to take pictures of his son. He then took it one step further and made a bit more realistic. He says it's "much easier it is to hold the camera steady in almost all situations". Find the insstuction to make your own Lego camera case on Mike Kim's website Nacionale. Or if you don't want to build it, you can just buy the LEGO digital camera. Im going to have to dig out my old legos and try this with my phone.