Slinky's jingle is the longest running in advertising history. Finish the lyrics: "What walks down stairs alone or in pairs and makes a slinkety sound? A spring a spring..." what?

The ad, which first aired in the 1960s, included the lyrics: "What walks down stairs alone or in pairs and makes a slinkety sound? A spring a spring, a marvelous thing, everyone knows it's slinky." Slinky was invented in 1943 by accident by an engineer devising springs for a ship.

Asked by Tom Cohen · Last updated 5 years ago · 35.4K views