In order for the sculpture to become overgrown with lichen, the sculptors fertilized it with yogurt. Related Posts:Unknown sculptors Russian cemetery monumentsLorenzo Ghiberti - an unrivaled master of relief sculptureSculpture Mud MaidenSculpture Stargazer in MogilevSculpture Prosperity in FloridaSculpture Vatican Pieta by Michelangelo Buonarroti Post navigation Sculpture Mud Maiden