I watched the tutorial on Cindy Lietz blog twice then decided to try her "blend and switch" polymer clay process. The first one I did was a mess. The clay stuck to the tile and the clay stuck to my acrylic roller. I finally gave up and made some beads out of the clay. They turned out gorgeous, so it wasn't a total loss.
The next time I tried it, I knew some things that I shouldn't do and some that I hadn't done before. I think the pieces came out exceptionally nice. I'm going to try it again using different colors.