One type of nail painting that I thought was really fun is called water marbling. I got some fun colors today (silver and pink) planning on trying it, but the polish I got just wasn't working (they do say that some are better than others). While looking at tutorials on water marbling, I found this post on tie-dye nails. Soo much easier, and also kind of fun, so I thought I'd try that instead.
Simply - paint two layers of one color on all your nails. Let it dry. Paint one layer of another color on all your nails. Let it dry. Take a q-tip, dip it in nail polish remover, and start rubbing different designs into the nails as you reveal the lower color.
~ for the second layer I didn't really care if I covered the whole nail since I'd be rubbing some off anyway ~
~post q-tip rubbing ~
It's kind of growing on me, and I'll probably leave it on for a few days, but I don't think it's my favorite look.