as mentioned in another thread, I've made a little pinhole camera with the help of a 6 x 7 roll film adapter printed by Ethan Moses of Cameradactyl.
I added the random LEGO pieces to make the the box...and viola, pinhole!
It still needs a bit of work as it has a little light leak, but I'm happy it works! It's fun! I need to figure out a way to make a tripod thread for it so I can use it easier instead of just propping it up or wedging it in trees.