Sure, you probably already knew that MAC pigment (pictured here in Mauvement) is a multipurpose product. Use it on eyes as a glittery shadow, for instance. Or sweep across cheeks for a splash of color. But did you know you can use it to make your own nail polish? Well, I didn’t. And Katie didn’t either. So when a couple of MAC makeup artists told us this amazing news (to us, anyway), we just had to try it. Luckily, the experiment was a success! Just mix a little bit of the powder into a bottle of clear polish, and voilà—you get a brand-new shade that nobody else has. And it just so happens to match your eye shadow perfectly!