The first is a modern rendition of a victorian landscape camera. The lense is from another camera, but the rest is homemade. The sample picture is pretty cool I think.

Here's a link to a card model pinhole camera. It was printed in a Czechoslovakian kids magazine back during the cold war. The author of the site provides a scanned version that you can print out yourself if you wish. This camera isn't worth the paper it's printed on! Man, I should be a comedian... Seriously though, it takes cool pictures, check it out...