As Carl's house rises up into the sky, an excited little girl watches through her window. though the scene passes quickly, there are a pair of Pixar Easter Eggs in her room. On the left, next to the bed, is the Lots-O'-Huggin' Bear from Toy Story 3. On the floor to the right is the ball from Pixar's first animated short, Luxo Junior.
Image © Disney-Pixar