In an earlier post I showed you how I made my own drawer pulls from acrylic diamonds that I found at the Dollar Store (check it out here). I was unsure how long they would last due to the fact that they are made out of acrylic and I didn't know how much stress they would take. After pondering it for a while I decided to drill the hole completely through the diamond. In this situation the head of the screw shows, but since they show on the antique glass knobs, I don't think it is a problem. In the pic below I used it on a drawer on my antique partner's desk. I have placed a washer behind it for a little extra decoration.
On the knob on the left I used a small decorative piece that I have for making earrings to add a little more glitz. Since the hole goes right through I know they will hold up.