I had a great picture on my old hard drive of some swirled m&p. If I can find it on my disc, I'll post a pic. But...what I do is use a colored Clear base and white. I pour the white into the clear....swirls MUCH better. You can color both....the white base seems to suspend alot better into the clear. I do it in multiple layers in a rectangular loaf mold. I pour a layer of clear colored base...wait a bit til it gets a light skin....then pour a bit of white....swirl a bit with a chopstick...let set up to form a skin...then pour clear...white, clear white..etc. It takes a LONG time, but the soap looks really cool Here you go....a great video tutorial I followed this video when I made my first batch