Marbles kind of look like people... and hell, fuck trees... those are disposable so paper could be the ice. Thats it, perfection at its finest.
Four months later...
What the fuck who keeps on using up all the toilet paper?! I work all damn day choppin' killer evergreens down to supply the world with paper ice for the best game ever.
Maybe the Angry Pooping Man should have realized a few things: