Make a Pinhole Camera - Kits, Instructions and Inspirations
5119 sells four models of pinhole camera kits on Etsy, a 4x5 model, a 5x7, an 8x10, and a 4x10 diptych model. They appear to be solidly built.
Kikkerland Pinhole Camera Kits
This is a bare-bones paper/cardboard pinhole camera kit. Assembly is required. The camera uses 35mm film. Find it on the Kikkerland website and other places as well.
WikiHow - How to Make a Pinhole Camera
These are very detailed instructions for making a camera. It uses photographic paper, so you will need to have a way to develop it.
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