So, I read this post on make-your-own decals, and voila! Decals that work! Cool things about making decals: if you're not great doing nail art with your non-dominant hand, this is a good solution. Also, doing a water marble decal uses a lot less product that going finger-by-finger. I admit that none of the nail art below is that great, but I'm showing it because I'm just so pleased that it worked so well!