I have a order for making a drum. She called it iridescent forrest green. Its REALLY shiney with the look of metal flake. I don't know how I would put that look on the cake. Could someone help me with this please.

Maybe you would ice/fondant it with the forest green color. On that apply some kind of edible glitter/sparkle. And maybe on top of that, apply some kind of clear coat that will stay looking shiny (I'm not sure what that would be though. Maybe corn syrup or confectioner's glaze?)

Hopefully someone here can help you better.

I just bought at Joanns the other the tiniest little edible, gold stars. Made by Wilton; they also come in silver.
http://www.wilton.com/store/site/product.cfm?id=36A607AB-1E0B-C910-EA8977647A58A212&fid=36B07605-1E0B-C910-EA275C163F2FC896

Global has a green glitter piping gel. Maybe you could just use that on the green fondant.
http://www.globalsugarart.com/search.php?search=glitter&searchimage.x=0&searchimage.y=0