whirligig

(noun) a conical child's plaything tapering to a steel point on which it can be made to spin. Synonyms: top, teetotum, spinning top. Example: "He got a bright red top and string for his birthday."

(noun) a large, rotating machine with seats for children to ride or amusement. Synonyms: carousel, carrousel, merry-go-round, roundabout.

(verb) whirl or spin like a whirligig.