From The Firewire Blog:
Fans of Disney-Pixar’s feature films love to scour the screen in search of the Hidden Gems the filmmakers sneak into each film: WALL-E’s explorations uncover a Mike Wazowski antenna ball, paying homage to Monsters, Inc., and in Up, the classic Luxo Jr. ball can be seen in the girl’s bedroom as Carl Fredricksen’s house flies by her window. The epic action adventure Brave features a few such gems, two of which are revealed here:
The Pizza Planet Truck – The Witch, an eccentric crone disguised as a woodcarver specializing in whittling wooden bear figurines and conjuring haphazard spells, showcases her mysterious and inexplicable knowledge of the future with a carved figurine of the infamous Pizza Planet truck, an iconic delivery vehicle that’s appeared in nearly every full-length feature film from Pixar Animation Studios since 1995’s Toy Story.
Sulley From Monsters University – A carving of Sulley, the lovable blue monster slated to return to the big screen in 2013’s Monsters University also appears on a piece of wood in the home of the Witch.