Whatever you do, don't put too much faith in YouTube videos like "10 easy craft items highly profitable" whatever BS. It can vary highly based on trends, area and the type of venue you're selling. I have done the whole thing of making things and selling at craft fairs and other type in person shows, so I have some real world observations. Most importantly, do not undervalue your time. So maybe you start out doing things in your downtime, or you actually enjoy making the thing. Now imagine you have to make 100 of the thing. Or it's now your main job, and no longer a side hustle. Track your time and charge accordingly. Along the same lines, don't forget material costs or shipping costs. That can burn you real quick. Maybe you got a pile of free materials and you're gonna make a quick buck. But then the free stuff is gone and you can no longer make the same thing for the same price. If you're selling in person at events, people like stuff they can easily throw in a pocket, purse or shopping bag. The best type of events I ever did was beer/wine festivals. Perhaps for obvious reasons. But also I had items themed to the event, bottle openers, beer caddies, balancing wine bottle holders, etc. I almost always sold out. Etsy can be useful, but it's mostly garbage and overrun by dropshippers and people selling cheap garbage made in factories. If you have an Etsy, just do your own marketing in person and online. Treat it like a store front. And to kind of circle back to the start, you're going to be chasing trends for what are hot sellers. And almost impossible to scale even with factory type equipment. Look at fidget spinners. Your best bet would be to find some things that can sell decent and offer personalization. Laser etching, CNC engraving, CNC embroidery, that's the money maker. More on reddit.com

Short answer: It's a lot of hard work but it can be done. Good Luck More on reddit.com