This ad is a parody of Lucky Charms.
This ad is from the episode WALL·E·NATOR / Extreme Renovation: House Edition.
Summary of Skit
Happy makes the multi-colored marshmallow bits that are fantastically delicious. But his brother, Bertram, makes the toasted oat-based pieces that are sixty hours a week with overtime delicious.
Happy: Oooh, Hee, Hee, Hee, Hee!
Girl: There goes Happy.
Happy: Ahahaha, Oooh! You'll never get me Marshmallow Charms.
(Happy blows a raspberry and hides in a cave.)
Boy #1: Quick, he went in...here?
(The kids enter the cave and find Bertram, a worn-out leprechaun.)
Boy #1: Uh, are you happy?
Bertram: Do I look happy? No I'm Bertram, his brother.
- Alludes to the fact that marbits make up over 25 percent of the cereal's volume.