Photogram photography?

Question: Photogram photography!?

that's when you place stuff over your picture when your in the process of developing it!. Any ideas of what i can use !?\

such as a crystal : it reflects light
paper with writing: you can see the lettering in the picture

or any cool shapes you can think of !?
Thank in advanceWww@QuestionHome@Com

Best Answer - Chosen by Asker:

Fishnet pantyhose, dried flowers, very thinly sliced lemon/lime/orange, a plane of glass with water on it, paper cut-outs, buttons, snakeskin (molted /sheded skin), glass paper weight, light bulbs!.Www@QuestionHome@Com