Dave Hakkens worked at this nice idea soap concept that works like this: you have a block of soap with self-serve wedges that can be used individually.
It’s very hygienic and you could be sure that no one has handled the soap before you. The soap could be used 90 times. I just love the idea to broke pieces and use as much soap as you want. Dave has a lot of sketches on this and it’s just amusing to see how nicely one can play with the shape of the soap slices to create animals in soap or other decorative shapes. See on his site the sketches of different soaps.