CL-CLICK Whirrrr . . .
I just realized how straightforward it would be to recreate classic "instant camera"-type pictures as props for a game. Here's some info on Polaroid photo dimensions to get the right sizes (or use the details as inspiration for your game universe's equivalent). To craft something durable like the originals, I'd use double-sided tape to adhere photos to thicker cardstock.
The idea is definitely developing in my mind . . . and I might even speed up the process if I shake it a bit.
-- Steven Marsh