Toy that goes up and down (2-2)

I think it could be either:

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2-2

yo-yo

(Other definitions for yo-yo that I've seen before include "Toy again in fashion" , "Toy that rises and falls" , "Toy consisting of a reel and string" , "-- - -- Ma, American cellist of Chinese/French origins" , "An up-and-down toy on a string" .)

I've seen this clue in The Mirror.

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