wow, those sound super creepy.You can make a printer pay for itself pretty quick. Kid toys, reloading stuff, grips, guns, Aztec death whistles
3d printing is super cheap at this point, an ender 3 is like $200 and people have printed full body stormtrooper costumes with them.
I've thought about printing components out of this stuff, but haven't bought any or the right nozzle to give it a shot. It'd have to be something new, interesting, and worth it for the cost though.Also guns.