This is my entry for the #monomad challenge by 
I made a kaleidoscope with cardboard, a small mirror and a CD, which I cut to make a triangular kaleidoscope. The idea was do it to take pictures by riding it in the lens of the camera. - I would like to make one more complex but the materials that I had were to put together a simple one. -
These are some of the photos I took:
Digital photography + kaleidoscope