Peridexion I'm not gonna tell you to stop sniffing glue, that's not a bad idea. I've seen the rollers you are talking about so I understand your idea. I've got some left-over fret from the parts so I may try something tomorrow just to see what happens. At this point I probably won't go to the effort of casting a roller, but what I might try is putting some paint out and letting it thicken a bit (that should take about 2 seconds with acrylics!) and then using a Q-Tip as a roller and sort of roll it down the fret just to see what happens.
Mike, if that doesn't work I think your idea will. The straps are a little bit on the thin side now anyway and that will thicken them and add some texture.
One thing is for sure though, those straps will never come off. PE never sticks for me when I want it to, but just let me need to get it back off and it's stuck for life!
Thanks for the help guys, I appreciate it.