At the end of the credits of Frozen, there is the Production Babies section.
Frozen Production Babies and a note telling us that Disney does not give us proof to support what Kristoff says about all men eating their own boogers.
Easter Egg #1: The baby named Briar is a reference to Briar Rose from Disney's Sleeping Beauty.
Easter Egg #2: The baby named Luke is a reference to Luke Skywalker from Star Wars and Luke Ross from the Disney Channel sitcom Jessie.
Easter Egg #3: The baby named Peri is a reference to Perry the Platypus from the Disney XD cartoon Phineas and Ferb.
Easter Egg #4: The baby named Thomas is a reference to Thomas O' Malley from The Aristocats.
Easter Egg #5: The baby named Evey is a refrence to Eve from WALL • E.
Easter Egg #6: The babies named Oliver is a reference to Oliver from Oliver & Company.