In the interest of science, I scoured Pinterest and Instagram for at least an hour in search of the best methods for turning your infant's bottom into a gorgeous gourd. Surprisingly, there isn't a lot of information out there on the how of it, beyond using 

non-toxic washable paints (like tempera

) that dry quickly and won't hurt your baby's delicate tush. You could use a foam brush or traditional synthetic bristles, but you could also use a plain old makeup sponge to stipple your baby's butt dimples orange. Just don't forget the stem, which should reside at the top of your child's booty, between cheeks A and B.