I'd have to say one of the more tedious creation items out there are any that give scrap iron on creation. This scrap is low quality, has barely any weight, and I suspect is only there to further increase annoyance. Rivets are needed in large quantities in almost every situation, so 100's of tiny, low ql lumps really adds up quickly. I and everybody I've ever talked to on the matter, would rather have the scrap iron done away with, even if that additional iron is still used up.