I purchased a lightning rod piece minus the rod on eBay. I borrowed Lorna's hairbrush, cut one black bristle off, and inserted it in the LR hole. I didn't use any adhesive. LR guaranteed to stay in place as long as you don't turn it upside down. LR is flexible and will not puncture your skin under normal use. Even if the LR disappeared there are plenty more replacements from that hair brush.

smile Bob smile