Carl Fredricksen’s Walking Stick
This easter egg can be seen in all versions of the movie.
After WALL-E gets EVE to come back to his home in order to show off his collection of stuff, he shows EVE the television and turns on his copy of the 1969 musical, “Hello Dolly” for her to watch.
As EVE scans the television for the first time during a dance number on the screen, off to the right you can very briefly see Carl Fredricksen‘s walking stick from the Pixar movie, UP. Carl’s walking stick is very recognizable by it’s 4 legs with tennis balls covering each end.