We used the Mold Market square loaf mold to make watermelon soaps. Layers of green, white, and red soap were poured and randomly placed within the loaf while pouring. A sprinkling of black strips throughout makes the watermelon seeds and clear soap was used for the full pour. This is just one of the many ways to make watermelon soap. I have given instructions for another version using Mold Market's rounded loaf mold. You will find that here.