I think this type of stuff is great too, funnily enough i noticed there is a competition for this type of stuff in America (downside you have to pay to enter). They call Krappy Kamera, can be any camera really no matter how expensive, the important thing is you have an unusual lens ie. pinhole.
Heres the link
Welcome to The Soho Photo Gallery entry info is down the left somewhere, may get useful ideas if nothing else from it. (i have not properly explored the site just noticed the comp.)