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Jell-O
By the 1920s–30s, Jell-O advertising often used patriotic imagery — Lady Liberty, the American flag, family scenes, and “Welcome to America” themes. Those ads helped cement the association between Jell-O and American identity, so later generations imagined new arrivals being welcomed with "red-white-and-blue Jell-O molds," a charming, but entirely advertising imagination, not Ellis Island reality.