Pictogram

Here I used my motorcycle key, ball bearing, a screen, and a cut symbol, and number.

The difficulty came with the key and bearing. Because they are thick, the sunlight was slightly indirect. 

Because of the thickness, arrangement indoors and transporting outside without exposer while moving was another challenge. Whereas the thinness of the Screen, the cut One, and the cut Star developed clearly because it laid flat against the light sensitive paper.