Picture of Pinhole Camera
This is actually a really simple process and once you've done it, you can do it forever.  Pinhole cameras can be made out of any canister that is dark inside.  I used a little food tin, and because it is shiny and metallic, i had to paint it black.  I think I would suggest it of any canister used, though. 

Materials needed for this project:

your canister of choice, preferably with a lid. (mine was a food tin with cardboard cover.)
black spray paint (the cheapiest kind, 97 cents from home depot)
a pin
light sensitive paper or film (I used Polaroid 300 available on Amazon.com)
a dark dark room
rolling pin
a hard flat surface to role on

Step 1: Paint

Picture of paint
Just go ahead and paint the inside of the canister black.  I did two coats just to be sure and cover up all the shiny bits.  We don't want ANY reflective surfaces on the inside of the camera. 
AymanB19 days ago

جميل هدا هو العلم الحقيقي من لا شيء

bkonfuzius5 months ago

Nice and simple! I love the idea to use Instant film.

For everybody else who intends to use it: pay attention that Fuji Instax is beeing exposed through the back of the photograph.

Magic indeed ;)

rimar20003 years ago
Interesting, but I think you must put more samples.
madelinemcneil (author)  rimar20003 years ago
Here is the set I made. This is a photo from one of my other instructables where I matted and framed these photos. I'll try to post better images of them soon! Thanks.
Thanks, Madelin!