From Lisa Horton Crafts is this really cool ink pad!  Interference inks are a combination dye and pigment ink, with a rich, shimmery color.  There are 2 colors featured on the lid of the ink pad. 

This pad features a beautiful pink and shimmery gold.

The magic activates when using this ink on different colored paper!  When on white paper, it's the solid color. BUT, when used on black or dark colored paper, you get the metallic color!

Collect all the other Interference Inks!