A couple of mirrors, a cardboard tube, and a bunch of random crap. That’s what’s behind the mind-twisting magic of a kaleidoscope. And when we say random crap, we literally mean that. There’s no real method for designing the end cap of a kaleidoscope, they just add whatever they want. Some objects are glued down, some are left to float, and the results all look totally crazy because of the triangle mirror system.