I've never been able to do it with liquid or chips I've had it work for a little while but for some reason in the soy I use (GW464), the colors end up migrating and blending together. This also happens with my layered candles, like the Candy Corn ones I made for Halloween. They started off with very distinct and bright Yellow, Orange, and White layers but after a while they orange color leeched into the yellow and white, almost completely eliminating the white and leaving very little yellow at the bottom. So I gave up on the marbling attempts