I'm making a soap collection of 3 each 2.5" Pringles can soaps. I want the sets to similar so they clearly go together but for each to have a different scent, complimentary colors and slightly different design technique. Since I'm doing the Pringles thing, the funnel swirl is a given. For a different bar I'm wondering about pouring a 1/4" slab and rolling it jelly-roll style when its still pliable then inserting it in the can and back-filling with a complimentary color. Will that sort of technique work in cp?