Hey, I'm new to the forums, but thought I would share something I tried while playing with embossing powder. You may already know or have tried this. You can mix Perfect Pearls with clear or white embossing powders to create a subtle metallic color. I like to do this, and it keeps me from having to buy gold powder. I don't have Pearl Ex pigments, but it should work the same.
BTW: The Tim Holtz Bottles make perfect storage for your homemade colors.
Thanks for reading,