I'm a big art nouveau nerd and stained glass has always been a standout medium to me. The ideal is to have a homestead that I slowly transform into a poor man's Palau de la Musica, with floral stained glass/mosaics/carvings making a natural cathedral that integrates with my houseplants. Jan Czugalinski's method is the traditional one that allows for big and structurally sound pieces. I finally got enough of a safe workshop space to start learning it and now I just need the glass itself. It seems like it will be a very meditative, dangerously poisonous hobby.
It's very precise and takes a huge amount of labour, but I think I can do it in a way that I don't think I could make a good-looking sculpture or oil painting. Cutting the glass seems like it will be my skill barrier more than setting it.
You've got the lead soldering, those lead H-tubes, finely ground glass, and the flux that you lay before soldering. I'm comfortable doing it with a respirator and gloves at least.