[forgotusername6]

I used to have a flowerpot furnace and cast small objects. I once stumbled upon a car that had been burnt out. The engine block had dripped down the road and I was able to collect some of the melted pieces. It would pop and spit when poked once cast, very different to the aluminium I often used, and I wondered at the time whether it was the magnesium in the block that was doing it.