Someone asks for something extremely specific/unusual, and are immediate given it likes it the most common thing in the world

[u/ObberGobb]

The Simpsons: Barney's Yoko Ono-esque girlfriend asks for "a single plum, floating in perfume, served in a man's hat." Moe immediately pulls it out from behind the counter, somehow having it right on hand.

The Simpsons again: Homer asks for the phonebook to Hokkaido, Japan at the library. The librarian immediately pulls it out without searching for it, despite the phonebook for Hokkaido, Japan probably not being a common request at small town public libraries.

The Muppets Movie: Fozzie Bear asks the ice cream guy for honey ice cream for himself, and a dragonfly ripple for Kermit, and gets it no questions asked.

[u/MisterBarten]

Or an example of both happening at the same time. The only one I can think of is the store having a Bort license plate, but no Bart.

[u/FutureBoy2099 → u/MisterBarten]

My son is ALSO named Bort.