Monetize a hobby. I collect coins and know an embarrassing amount about pennies from all ages and countries. As such I can pick out what other collectors miss and take those coins I find and sell them to interested buyers. It’s not a huge amount of money but it’s fun to me and is a couple thousand in profits each year. If I were to break it down it’s probably less than minimum wage per hour of work but it’s fun for me (just don’t overdo it or you’ll kill the fun of the hobby).

I have a friend that creates stuff for Etsy. She’s got a few dozen people that commission her for work pretty regularly at this point so she also has work to do.