The factory uses a 3M tape that has a really strong adhesive. In the rare case that we have seen them come loose, we have advised just using a two sided tape. Would probably use a double layer to more accurately replicate the weight of the 3M tape. The double sided you may use, or we would use, is probably not as strong, but should work. We currently do not have any replacement medallions, but usually keep a few around. We have requested some more, so if it turns out you need a replacement medallion, let me know. It may be a while, but we will eventually have some. I would need to know what number club head you need it for.