Abby Mix & Match Nursery Rhymes is a 2009 Sesame Street board book in which Abby Cadabby dresses up as a variety of nursery rhyme characters, including Humpty Dumpty, Little Boy Blue and the Old Woman Who Lives in a Shoe. Each outfit is divided into three parts -- head, body and feet -- so that readers can mix and match different parts to create new characters (and new nursery rhymes).