I cut a pringles tube about 1/4 of the way up from the bottom, then put the lid on the open end of the smaller piece. I taped this smaller piece to the end of the longer piece so the lid is basically inside the tube, about 1/4 of the way up from the bottom. I poked a small hole in the bottom of the tube. The lid is supposed to act as a kind of screen which the image is projected onto, but it didnt quite work out that way for me. Everything is being projected onto the inside of the tube. I stuck the lens of my camera into the tube, pointed it at various things and took some photos. Here's what I ended up with. I thought it looked pretty interesting.