You know, I'm not totally sure what I used. I've tried like...three different things xD I have a creme based face paint that I know I used once. And then I have a creme eyeliner that I might have used...
Uhmmm overall, probably about a day? The first side took a while since I didn't have the right stuff for it. And my stencils were being lame xD But what's nice is after you get the main shape down, once one coat dries you can just paint another coat, and go off and do something while it dries, then come back and do another. You might be able to like...do an applique kind of thing with it if you wanted, instead.