I'm a licensed plumber, but do very little plumbing. For 30 yrs now I've done upholstery work, and still do, but five or 6 yrs ago my back crapped out and I thought for a while I couldn't do upholstery any more, so I was scrambling to find something to do with my hands as my head doesn't work.
I took up making signs. I love it! Lettering trucks mostly, but banners, decals, whatever. If it doesn't need concrete or electricity, I'll do it. I'm artistic, but not an artist, so computers and electronic machines help me do signs. At this point signs and upholstery are both half my income.