In a trailer of Toy Story 3d (1 and 2) there is an extra scene where Andy's 3 Aliens were watching the film(s) in 3d, and they said "ooh 3d." When The claw came onto the screen, one pointed at it and announced "The Claw!" It came out of the screen, and grabbed him, and said "I have been chosen! Farewell my friends."
In a poster, there is an alien wearing 3d Glasses.