Recently I experimented with a pinhole camera. I created it with a Altoids tin. I drilled a hole in it and then painted the inside black. Then I took a piece of aluminum and poked a small hole in it and then taped it over the hole that I drilled. I then loaded RC paper in it and put it up for two weeks. Here are the results. The top one is the negative that I scanned on a flat bed scanner. The bottom one was inverted in photoshop. The interesting thing is the colors that you get on black and white paper.