Does anyone know of a source to buy fairly strong clips (similar to the old fashioned hair clips they used instead of bobby pins). There is a clip you can purchase to clip on the bill of your golf visor - with a magnet on the underside and a flat one on the top side. These are used to mark your ball on the green when you're golfing. The clip remains on your visor and you slide the top flat magnet off and mark your ball with it. Hope I've described this properly. The clip is fairly small but strong, so it isn't really noticeable on your visor.