Tony, those copperhead skins are pretty thin and whatever color is underneath really comes through. Light tan is one of the best colors underneath copperheads, so maple or bamboo under clear glass works really well. I think copperheads over most brown glass would still come out fairly dark. If you want to put copperheads over black glass or other dark colored limbs you can spray the limbs with a light coat of cream or tan spray paint before laying down the skins. Pretty much any cheap rattle can paint will work, but get some with a flat finish and use just enough to get your color on the limb.