While waiting for the painters, I played around with making a pinhole “lens” for my DSLR. The results are not exactly great, but it was kind of fun. The first two were done with a simple round piece of cardboard with a circle punched in the middle, then a piece of aluminum foil taped over the hole. I poked a teeny tiny hole poked in the foil, then taped the piece of cardboard over the front of my camera.
These turned out better than the one below, which was done with an adapted body cap. I melted a hole in it with a hot safety pin (candle + pliers), then covered the hole with a piece of metallic automotive tape that had a smaller hole poked in it. I think the hole in this one was actually too small.
So I enlarged it slightly.
Obviously, this is going to require tinkering.
red paper boat 