50 Foods, 50 States: The Must-Eat Roadfoods Across America

Out of embarrassment, sexual panic, or a sense of humor, virtually no eater calls a testicle a testicle. Whether harvested from a rooster, sheep, pig, or bull, edible balls go by such names as prairie oyster, calf fries, cowboy caviar, and – most popular – Rocky Mountain oysters. They're popular in diners and steak houses throughout Colorado.