Right before Larkin's last market (because of course), our rock tumbler's power cord failed in a pretty spectacular circuit-blowing way. Larkin uses it as a polishing tumbler for finished products, so had a whole slew of things they were hoping to polish before market.
Our local Buy Nothing Group came to the rescue! Larkin was able to borrow a tumbler from a neighbor for a few days to complete the necessary polishing-- I can't recommend joining/starting a local Buy Nothing Group enough! It's a wonderful way to help real people in real time.
Once crunch time had past, and the borrowed tumbler was returned, Larkin set about repairing our tumbler. It turns out a lot of their jewelry skills translate pretty well to electronics! With a few pointers from their electronically-minded dad, Larkin was able to splice a new cord onto the old one and the tumbler is chugging along like a champ again.
Larkin did have to switch mind-sets a little. They were a bit horrified at how much solder they were supposed to use to make a solid connection-- a little different from their usual dainty jewelry work. ;)