I played with pinhole photography for a couple of years and can only say that it really is a lot of fun. I never cease to be amazed that so simple a contraption, made with a reasonable amount of care, can produce such amazing results, and so cheaply!
I have a couple of ancient, slightly warped 11x14" film holders a friend gave me a few years ago. Some day they will be put back to use in a pinhole camera. Should be tons of fun!