Unfortunately many of the more interesting cameras are those which use ... a readily available and cheap instant film. Polaroid 100 and Instax 210 are almost the same size, but are not close ...

Amateur photographers can press the shutter button on the tiny blue Polaroid camera and watch as a pretend Polaroid picture slides out with a sound effect.

However, we found this interesting anyway. [Marker1024] has taken this old Polaroid land camera and modified it to accept a standard 35mm roll. His list of materials may sound fairly MacGyver-ish ...