The 3D Glasses is an object that appears in the game Mario 3D. It was manufactured by the BBC to help blind people see, but was wildly unsuccessful.
Whenever you wear the 3D glasses, everyone around you sees you popping out at them in a frightening manner. This made the BBC disopse of it.
Story in Mario 3DEdit
Since it was unsuccessful, the BBC put it in a random truck. Mario found the glasses and decided to put them on. For the rest of the story, read the page on Mario 3D.