"Your ears so big, you make Dumbo jealous." Or "Your ears so small, you can't hear when people insult you." Or "Your ears aren't so big ... for a basset hound." These are the kinds of casual insults you hear on a school yard (or, this year, on the presidential campaign).
Given the features on my face, I received my share of insults in school, such as: "Is that your nose, or a ski jump?" And "Is that your nose, or did someone park a blimp on your face?"
Sure these make us chuckle, but they aren't funny.