According to the theme park news website Screamscape, Disney* is currently building "mobile animatronic" versions of WALL-E which will be able to rove around Disney parks and presumably interact with guests.
The report claims that the first of these will be placed at Disney's Hollywood Studios (previously known as Disney-MGM Studios) theme park inside the Walt Disney World Resort in Florida. Also, either of the Disney parks which help form the Disneyland Resort in California will feature one as well.
The animatronic WALL-Es will be life-size, standing at about 3 feet tall.
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*Disney Imagineering is the Walt Disney Company unit responsible for audio-animatronics projects.