The two are attempting to take over the world by stealing the all - powerful Triforce, a magical MacGuffin of power, wisdom, and courage that plays a leading role in every Zelda game. (engagedfamilygaming.com)
The Stones have played minor roles as MacGuffins in many Marvel Cinematic Universe movies, and those assorted plot threads are all building up to Avengers: Infinity War, a film in which the ownership and location of the Infinity Stones will become vital to the safety of the Universe. (polygon.com)
They've served as the major MacGuffins for a lot of the films, but may be hard for most viewers to distinguish. (comicbook.com)