Using fruit and vegetable scraps to color the soap is a real money saver. I am making use of things that I would have gave to the chickens or thrown away. When I get some cucumbers this summer I will try and make some soap with them. I read that cucumber soap is very good. Two weeks ago I used some of the true buttermilk that I had froze when I made some butter. I don't bake a lot and use the buttermilk and had just been giving it to the chickens or putting it down the drain; now I will freeze it and use it to make soap. Both batches I used tallow, used vegetable oil, sunflower oil and coconut oil.