Get your soft kitty doll featured on The Big Bang Theory. This singing soft kitty doll will bring comfort to the sickest of the sick (or just the biggest fan). From The Big Bang Theory episode "Pancake Batter Anomaly" comes one of most memorable moments in the history of the show. An ill Sheldon explains to Penny that his mother used to sing him a song as a child whenever he became sick. The soft kitty lyrics: "Soft kitty, warm kitty, little ball of fur, happy kitty, sleepy kitty, purr, purr, purr." She measures 10 inches long and even sings when you press her paw.