Toy Story / Cars (Again!)
The tractor that Lighting McQueen and Mater tip in Cars is a toy at Sunnyside Daycare.
Toy Story / Up
This little girl from Up has both a ball and Lotso Hugging Bear from Toy Story. There's also a theory that an older version of her attends Sunnyside.
Toy Story / Finding Nemo
A Buzz Lightyear action figure can be seen on the floor outside of a toybox in Finding Nemo.
Toy Story / A Bug's Life (Again!)
Mrs. Potato Head reads A Bug's Life to the toys she has adopted as her children.
John Ratzenberger voiced ALL of these Pixar characters, a fact made fun of at the end of Cars.
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