Yeah, they were going for pretty big bucks over on ebay a few years ago. The artist (I assume that's what you would call the person who made them) seemed to pick a few of the more random Amiga chips. I think there was one for one of the earlier model Agnus's (Agnii?), as well. Probably just went with what they could find. I remember seeing them for chips for other computers (besides Amiga) as well.
Still pretty neat, all things considered.
