Permababies are definitely a good point (and could be handled the same way as ancients, eventually, with similar coding). Considering things like pets, the NotN book piles, and the new achievement shop treasure hoards that already exist as apparel, I wouldn't consider it particularly weird to have any of the things you describe classified as such either, but I'd love to see them somehow as well. (I think pretty much anything would need to be pose-adapted to some degree though.)