I think, back in the late 80's it was. It was this sort of rigid loop thing that you stuck in your hair and threaded a ponytail through it, and then you sort of pulled your ponytail in on itself?
Was about the same time that snoods were popular for those that remember!
Was doing dd1's hair this morning and wondering if they still did them - she's got lovely long hair and was thinking that style might look nice for school?