The most requested Happy Meal toy has returned.

BY ALI DONALDSON, STAFF REPORTER @ALICDONALDSON

Illustration: Inc.; Photos: McDonald’s, Getty Images

McDonald’s is serving up some Millennial nostalgia. This month, the fast-food chain reintroduced some of its most beloved Happy Meal toys from the late 1980s and early 1990s.

Yes, Changeables are back.

For the uninitiated, the small plastic toys, which function like Transformers, look like items from the McDonald’s menu—fountain cups, burgers, boxes of fries—but with a few pulls and twists, the figurines can be converted into a character, such as a dinosaur or a robot, which has been........

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