You can't polish a turd, unless it's a golden turd!
Dude--you must have MISSED the Myth Busters episode where they took animal manure, aka "turds", and formed it into spheres, and then POLISHED THE TURDS until they were smooth, round, and shiny!!! I'm not kidding!!! Those two jokers, who on December 6th of this year, had an errant cannonball break through a cinder block wall at the SF PD bomb disposal range, go down a hill, then completely in and then through a house, across a six-lane roadway, and then through a house's wall, upstairs on a weird bounce and crashing through a bedroom where a man was sleeping, then out of the second house, and into the front seat of a parked minivan--all within the confines of the city of San Francisco, CA. Yeah..those two knuckleheads--they POLISHED TURDS, and did a doggone fine job of it too!!