Here's a colorful spin on a cool low-tech idea: the downloadable pinhole camera. Lighthouse in a Tree is offering a pdf you can download, print out, and assemble to build your own functioning film camera out of paper. Couldn't origami yourself out of a paper bag? Fear not — detailed flash animation will guide you through the process. If you get it right, you'll be able to use your creation with any kind of 35mm film, although the site recommends PAN film from Ilford or Neopan 100 from Fuji. Your camera may not have megapixels, but it makes the concept of a pinhole camera far cooler than it has any right to be, and considering the camera is a free download, it's hard to beat the price. You only have to supply the construction paper, film, and moxie. — Peter Pachal

The downloadable camera, via lifehacker