Some friends gave me a broken Artascope a few months ago that was easily fixed! It's like a retro DIY kaleidoscope with a triangular prism that contains two black glass mirrors. You can put whatever you like onto the rotating dish at the bottom for your viewing pleasure.
/r/gifs: .gifs - funny, animated gifs for your viewing pleasure - Funny, animated GIFs: Your favorite computer file type! Officially pronounced with a hard "J" - August 16, 2021 - 13:17