Personally, I think I'm pretty good at water marbling and I enjoy it quite a bit. I usually have far more successes than failures. It's definitely one of my favorite nail art techniques to do.
Well, that was all just to tell you that I did a water marble design. Ha ha!
Since they quickly became my all-time FAVORITE polishes to marble with, I used my OPI ColorPaints. I started with Silver Canvas as the base, of course, and marbled with Pen & Pink and Purple Perspective.
I just love it. And the ColorPaints make it sooooo easy! Well, liquid latex helps, too. ;)