I gave up trying to find muffin pans at garage sales and bought a couple @ WallyWorld (their private "Mainstays" brand) to supplement my lonely Lyman ingot mould. First "ingot" with WW's went OK, didn't release especially well but that didn't stop me from trying three more with pure lead from stickons. Big mistake, knocked the cups out of the framework but the lead is stuck fast. They don't appear to be non-stick or aluminum but am thinking the recovery mission will involve tin snips and pliers. Suggestions?