It is quite fun. I guess a resistance heater one might do enamelling? (Can you put copper in a microwave one?)
Anyhoo, glass likes to slump to 1/4 inch thick. It is sort of it’s happy place. You sprinkle on sugar sized bits or dust or chips and make your pattern. Warmglass is where Mrs Idris uses and they do little bags. Also, glass rods so thin you can bend them over a candle.