think smaller and thinner ingots, if it looks like it was sheets of alum. or shims of some kind, they may not realize it's an ingot, that is if you can get the top to cool flat, mine seem to have ripples in it. but I know that I turned in 3 5 gallon buckets full of alum that melted in a fire and they took it as dirty alum. but again, the pieces were small, the biggest one weighed 1.5 lbs. I was questioned at the yard about it, and told them we had a trailer fire on a lot, and other than the frame, this was all that was left, they told me to bring in the rest when I got it gathered up. I did lie about where the alum. came from, but to cover up what I was selling, just how it came to be in the form it was in, as I was worried if I said, "it came out of my fire pit" they would turn it down.