I hope everyone is ready for Worldwide Pinhole Photography Day. Even if you don't have a pinhole camera, you can make your pinhole cap for you digital SLR camera.
Just get a piece of a soda can and make an indentation with a pin (don't go all the way through the aluminum). Then using fine sand or glass paper, sand down until a tiny hole appears. Drill a hole in SLR body cap and tape your pinhole to the cap.
Using this method you won't have the best pinhole in the world and it will probably be real blurry but it is very easy to do.
I will probably be using my Daylab 3x4 Polaroid pinhole camera.