With these two simple links, you can create any manner of necklace, bracelet, earring, or even chainmaille. The open ends flex just enough to easily snap together. The simple ‘S’ link can be printed in less than 30 seconds and the 3-lobed link in less than a minute. Print a bunch, and in a bunch of colors, and let your imagination run wild. (Or keep your kids occupied for hours.)

I printed these in PLA with 0.2mm layers, although I'd imagine most any filament would work. I wouldn't scale them down, but you could easily scale them up for a chunkier look.