If you like modern gizmos but still hold a place in your heart for the gear of yore, you might go for a new decal that makes your iPhone look like an old Polaroid camera. It sells for $6 at Photojojo, which promises that the sticker's easy to apply and remove, and won't leave any residue. It's also supposed to guard your device from scratches, but don't expect any heavy-duty protection from dings and drops.
The decal, which is specially designed for the back of the iPhone 4, assumes the look of a Rainbow OneStep Polaroid Land camera, which was originally produced between 1977 and 1982. Surely there's an app that automatically plays KC and the Sunshine Band every time someone comments on your uniquely shaped retro shooter.