Who says a camera has to cost hundreds of dollars? Corbis, the photo stock agency, has created five different cut and fold pinhole cameras. Called ReadyMech, all you do is download, print and put together. More than a great science project for a class, these no-cost cameras can take cool picures. Just add film.
Specs: Choice of five fold-together pinhole cameras
Bottom line: These pinhole cameras can teach optics and art skills.