hiso the other day I recieve some bionicle masks from ebay. of them, one was what appears to be the kanohi huna copper mask of victory. However, when I went to look at it I realized it wasnt copper...This surprised me because I always thought that since they were called the "copper" masks of victory, they would actually be copper; I assumed that if they could make a solid 14 karat gold hau, or a platinum avhokii, they would make these copper... are they supposed to be copper? and If they are, then what do I have, and how rare is it? thanks