its a holga....

items to construction:

Some sort of film camera
grease proof paper/scratched or frosted glass etc
cardboard
Thick tape to stop light leaking through
digital camera (my dslr)

step one:

take the back off the camera and put a piece of whatever you decide to use (grease proof paper in my case) along the film plane (where the film would be) and tape it down

step two:

find some cardboard and make as best you can a light tight tunnel from as flush as you can get it from the film plane to about a foot away (roughly) and tape the edges up so no light is getting in

step three:

find a plank of wood and tape it securely onto it

step four:

(i did it anyway for extra protection against light) wrap a scarf or two around the construction to stop light.

step five:

stick your camera, NOT COCK, in the hole at the end and take exposure readings and mess around with it, NOT WITH YOUR COCK!

NO COCK INVOLVED!

P.S it works a lot better if you have a thick towel or something you can stick over your head under so you can view it without light disturbing your view.