I bought a small sheet of g10 and made liners for my BK7 after-market scales. All the sanding was done by hand. My first mod, and it came out looking really nice.
https://photos.app.goo.gl/s48FmN3gkC4KQiD89
https://photos.app.goo.gl/s48FmN3gkC4KQiD89