I have a customer that brought in a frame full of arrow heads where some have fell off the felt. He did it himself and used silicone to hold them down to a felt backing, which apparently worked for him for the last 5 years. So now he wants me to fix them using the existing material as a backing and I'm not sure which way would be the best. I had thought of using a drop of 5 minute epoxy on each one. Anyone have a better way to hold them down without damaging the arrowheads?