Hi Steven,
Your displays look great!

A word of caution,though...a few years ago, at a flea market, my husband and I found an 8x10 frame that had 28 chips in it. The chips were laying on black fabric (velvet, I think). About 6-8 of the inlays were discolored from the dye in the fabric! Soooooo....while the display looks really great, I'd avoid using rare or high-end chips unless you put them in air-tites.