"This is about the size of my hand, made of/with some kind of metal (I think copper)"
A: "Based on the morphology and symbolic motifs appears to be a copper Incan axe head. Pre-columbian, and definitely real. Could be ceremonial but would depend on size."
I didn't know what these were, but I found a whole bunch of them in my parents' basement and I used them to hold up christmas lights lol