Is it possible to polish poop?

Contrary to the popular idiom, it is possible to polish poop. A television series called Myth Busters tested the idiom "You can't polish a turd," and found it to be false. After multiple failed attempts at polishing different animal dung in various ways, Adam Savage and Jamie Hyneman discovered the Japanese art of making hikaru dorodango.

Hikaru dorodango are balls of mud, molded by hand into perfect spheres, dried, and polished to an unbelievable luster. Using the same techniques to make dorodango, Adam and Jamie were able to turn ostrich and lion droppings into shiny and glossy balls of, well, poop.