They seem to be all the rage at the moment, a bit like piercings were are few years ago. I really hope the go out of fashion before my children are old enough to get one. I don't mind the ones that can be covered up so much but I have seen ones that are on the throat, face and side of the neck that just can't be covered (unless they wear a ski mask LOL), I really hope they thought long and hard about those ones.