A small practical 3D printing win: In my recent move, a few clips that hold the slat pipes of the bed frame were lost. The frame is only a year old, but the manufacturer discontinued since, and no longer has the parts. And, lost parts aren't covered under warranty. So, I set up my 3D printer, spent 10 minutes of measuring and modeling, and for 3 cents of filament each clip, I printed my own replacements.