I spent some time working on experimental cameras, I tried making two variations of a kaleidoscope camera and both seem to not be working. I believe the first one is suffering from light leaks. As for the second one, the weather was constantly shifting between cloudy and sunny and I could not get a good exposure time, all black or all white. I got a grey one but I think it was only grey because I didn't let it develop into black.
All of the larger square photos are from my first camera and the smaller are from my second experimental camera.