Thank you very much, Wally!
Liquid Electrical Tape
I've used these for years...
I have cut smallish pieces of 2000 or 4000 grit sandpaper and glued them on picks to help with keeping them where they belong.
I'm going to give this tip a good try out and pass on to others. Thanks for sharing.
Plasti-Dip is a similar product and might work too....
Thanks Wally. That's a good idea.
Ken
"The dulcimer sings a sweet song."
I have used "Liquid Electrical Tape" on a number of things to improve holding them or creating non-slip surfaces. The attached .PDF describes how I have used in to make picks harder to loose.