Place it at the exact frame a prop starts moving in your edit, then follow it with a reload gun sound if the joke turns into a gadget reveal, or let it stand alone before a reaction cut.
關於此聲音
This is a very short burst of fast rhythmic metal squeaks paired with light click-like thunks, tight and mechanical in character. It feels playful and slightly frantic, like a tiny contraption working overtime for comic effect. The clip comes from the Donald Duck cartoon Donald Duck and the Gorilla, released in 1944.