I designed and printed the ‘slide through fish’ end of a replacement for my lost fish stringer in a day. Yes this is one of the simpler possible things to design and not a difficult print, but going from start of CAD to physical object in water within hours is still pretty amazing to me. Here’s my design. Rope is some spare line from a spearfishing reel I’ve never used, 500# spectra or something similarly overkill. Carabiner is this guy. Here’s what a commercial version looks like. If I can get a cheap printer to spit out usable slip tips, I’ll really be in business…