Great PearlEx Tutorial - metallic powder and then a patina finish with dark acrylic. I like using Inka Gold most of the time but sometimes a powder will work better for a technique. You can find Fimo, Pearl Ex Powders and Inka Gold at Poly Clay Play http://polyclayplay.com/pearl-ex-powders/
How to use Inka Gold | nka Gold is easy to apply, quick drying and gives an elegant gilded shine to absorbent surfaces such as untreated wood, paper, cardboard and unglazed pottery. When applied and buffed to a shine it is smudge proof.