Customers send in a picture, then you use computer programs (for shape from shading and 3D modeling) and a rapid prototyping machine to carve a box of soap bars.
Customers can feel the love as they lather themselves with images of heroes and loved ones. Or they can feel the satisfaction as they wash their dirty feet, armpits and nether regions with the disappearing face of someone they don't like -- like George W. Bush here.