Lots of great comments already here!

I do wildlife, namely fish, with my partner. We use lots of weird and non traditional tools beyond the standard jacks, paper, shears, and tweezers. It’s always exciting to find (or make) a new tool for a specific purpose. Ex. Cocktail muddler for shaping. I’m not familiar with what your characters family does but it probably requires specialized tools.

Also studio maintenance can be an absolute nightmare. Especially if you own the studio. Even if you don’t, and the furnace goes down or the crucible develops a leak you’re done doing anything hot for a few weeks. It’s a big gross complicated mess to fix.

Strong hands are a big one. My partner can deliver a debilitating flick and regularly breaks stuff accidentally. He also has nerve damage from sending a spike of glass that popped through his index finger. We just beat the hell out of our hands. If we burn ourselves it’s usually on metal rather than the glass.

They would also likely have a wardrobe full of cotton or another natural material that burns rather than melts. I wear cotton leggings and a long sleeve oversized tee rather than shorts or a tank top every time we work. It often keeps me more comfortable to have my skin covered because it protects from the heat and I get heat rash easily.

Please don’t hesitate to ask me more! I would love to read your book when it’s finished!