Yes it exists…even if this merry-go-round is actually only a miniature. Indeed, the curious will be able to discover it (and play with it) at the Musée des Arts Forains - Collection Jean-Paul Favand, a private museum of funfair objects located within the Pavillons de Bercy (near to Paris, France).
As you could see in the following video, the concept is very simple: the players try to get their skee balls in the high-point holes to advance their waiter:
We highly recommend this attraction for kids…and for all the waiters who would like to “train”!