Millie and Molly are sisters who appeared in a number of animated segments on Sesame Street.
- Molly imagines her surroundings as various items, while Millie only sees them for what they really are. When Millie finds a real quarter and Molly wants one, Millie tells her to use her imagination.
- When Millie wants a cat and Molly wants a dog, their mother buys them a turtle.
- Millie and Molly look for a place to hang a picture of a rock star.
- Millie and Molly build a bookshelf.