These are actually super easy to do. All you need is some black polish and a couple of dotting tools. I have a small dotting tool, but for the larger circles that form the middle, I used the other end of a small paintbrush I have. I used Wet N Wild 2% Milk for my base coat, and Sinful Colors Black on Black for the actual mustaches. And of course, a topper of Seche Vite, though you want to make sure the black is completely dry before putting that on so it doesn't smear or bleed. I watched the tutorial video here to learn how to do this!