Does your heart die a little when you have to throw away that last little sliver of soap? Now you can save it! You have now personally solved all our ecological problems!
Just a gentle suggestion.
Is your bathroom trash heap themed? Do you collect stray cats and old food remnants? Boy do I have a bar of soap for you!
It's important to use every part of the beast.
What's spiny and slippery and smells a little like Christmas? Soap shaped like a hedgehog! Good thing it's not very pointy, bath time could get scary.
Why wash your hands with a boring little nub of Ivory when you have choices like these?