Thanks guy's
I have some coarse grind Turquoise, but it needs to be fine powder for a Arrow indicator.
So I used Grandpaws Hammer Dad gave me years ago.
I spot drilled with a 5/16" forstner bit on both sides
Filled the hole with it and super glue, filed and sanded smooth.
I think I'm going to leave the grip Naked, no leather or twine.