This is a page I set up to help you find specific color combos for coloring with Copics. As I find great examples of new colors I will continue to post.
Today I was looking for gold color combos. My favorite was Pam Sparks' recipe for gold. Here it is Y00, Y15, Y26, Y28, YR 24, W35, W3.
There are additional options at http://copiccreations.wordpress.com/2009/11/15/challenge-no-16-golds/