I used to run an Etsy shop! It was called Teeny Alchemy, and themed around little bottles full of weird and wonderful things.
I made a bit of money doing it too - perhaps £100 a month. At first I really enjoyed it. The only problem was, I ended up having to make the some things over... and over... and over. It was like having a really poorly paid second job in terms of the number of hours it took up.
Unfortunately webcomics don't make me any money, in fact they probably cost me money (COUGH FIND ME ON PATREON COUGH ;D) but I'm much happier doing them, because I enjoy creating pages and there is always something new to do/learn.