Suppose you want to shoot medium-format panoramic-format images. You could buy a pro camera: $5700 for a Horseman, $3600 for a Linhof (no lens) or a secondhand Fotoman body for whatever they're going for. You could spring for an old press camera ($150 on the cheap end) and a rollfilm back for several hundred more. If quality isn't as important, you could spend just $150-$300 for one of Lomography Inc.'s Eastern Bloc toys.
Or you could grab an old Kodak and go to town with glue, cardboard, and cheap hardware. The old 116/616 format allows 6x12 images when converted to 120 film. What do you need to do?
1. Mask the film gate. Black-painted strips of cereal box are enough for this; can be taped on for easy removal later.
2. Eye-lever viewfinder. More cereal box stock. The calculations for viewing angles need only trigonometry; drop-in masks solve the parallax problem. Tape that sucker on.
3. Frame counting. You can see the 6x4.5 frame numbers through half of the red window. Tape off the other half and that's all done.
4. Spool adapters. To make the camera take a smaller spool, fill the space with rubber washers, a few nails as pegs, and a bit of plastic to extend the winding key.
Thus:
Total cost: $20 for the camera, $8 for the bits and bobs that I didn't already have in the 'shop'. (Leftovers, fabric bits, hardware odds and ends: save them. They are your friends.) For that trivial sum I get a respectable f/6.3 anastigmat and a nice big format in a package that folds to 8" by 1 5/8" and weighs only 2 pounds fully loaded. Not too shabby.
(Rain for the next two days, but I'll post results. Promise!)