Welcome Eliza..that was quite a nice find. That silver half moon could also have been from a small defect in the mold and got ground off. Nope, no 12 step program. Drugs, alcohol, gambling they can cure, but not this addiction. I see a lye bath in your future. But the bag shouldn't smell up your house too bad, no worse than cleaning your oven and probably less so. Let us have a look at it when you're done. 8-)