I just got my 3 finished up. The boiling is the quickest way, but I could not stand the smell. I buried mine under my deck and left it there over the winter. When the ground was finally unfrozen I dug them all up. Clean as a whistle. I then glued all the cracks so nothing fell off. After this wipe em down with peroxide. When buried I never could smell anything and there were 3 deer heads under my deck.