Corbis, the Seattle-based stock photography company, has created a set of five free PDF templates for pinhole cameras you print and assemble. To build your camera, you'll need a desktop printer, several sheets of paper, a cardboard cereal box, an Exacto knife, aluminum foil or a soda can, and a needle to make the pinhole.

As you can probably tell from that MacGyver-like supply list, building pinhole cameras is not an exact science, and the shots you take with them may not yield the result you expected. But it's that very unpredictability that makes them a refreshing change from the digital world.

The assembled cameras:

The first page of one of the templates:

To download the templates, go to http://corbis.com/readycam.

If you catch the pinhole camera bug, see our how-to on creating your own panoramic pinhole camera.