So far not much success in finding new or good used plastic retainers. I did happen to find these at the local hardware store. They are considered auto body fasteners. Black plastic and a much better fix then a pop rivet that I was thinking about doing. If anyone wants the exact size, I can get that info for you. They fit ok, not too tight but enough to hold the hooks together yet you can remove them with your finger nails. Best thing is that they are 40 cents each. Better than nothing, at least until I find correct ones.