I just did actually... I was coming here to post it, and voila I read your post! I added MAC's Pro Matte Orange pigment to an old wet n wild shimmering white-ish with almost a bluish hue in the right light (#434 if they still make it) nail polish, and i'm still shaking it up and mixing it like mad, but I am just LOVING the results thus far! Its almost like a redish orangey now, and my nails look like they're on FIRE! Its so awesome! I'm still going to shake it up and make sure its properly mixed etc before I take pictures, but if you want to see what it looks like let me know and I'll see if I can get it on my nails so it looks ok, and take a pic! :-D I am LOVING this! I might have to get more white nail polish to add it too! ooooooo and I can experiment with clear, and all kinds of things! new window... totally open! *so excited!* Its like Christmas came early.
~may_cup