Polly Locket is a doll of a blonde woman with a fancy outfit. In the manner of a locket, her face can really open up and you can store things inside her face. Prunella received two for her birthday in "Prunella Gets It Twice;" one from Rubella and one from Francine. She later gave Francine the doll Rubella gave her, with a personalized sweater that said #1 Coolest Friend. In "D.W.'s Backpack Mishap," D.W. imagines that Omble would turn Mary Moo Cow dolls into hamburgers and feed them to Polly Locket dolls.