Are they starting a jewelry business? WTF was the point?
"I kin melt stuff. Hurrdurr."
Probably, it seems like they just learned that coals heat up when they get more oxygen and wanted to melt something.
But it does point out just how easy it is to do this sort of thing. Maybe someone will see it and make something cool. The same technique works with gold and silver, but learning how to do it using "free" material has a lower entry fee.
The coals are unnecessary, it's a lot easier and cleaner to use a propane torch, especially with the low melting point of any of those metals.
And buy a crucible, ffs, you can get one for under $50. Then move on to spin casting, it's a lot more fun. A centrifugal caster runs at least $350 new, but you can find them used every once in a while.
/and wear gloves
//use proper farking equipment, I guarantee that you do not want to pour molten metal on yourself
///lost-wax casting ftw
