Not only kids, McDonald's will offer its Happy Meals to adults too this October.

McDonald's teamed up with Cactus Plant Flea Market to release an adult meal box, complete with a classic character toy.

Earlier this month, McDonald's posted a quote on Facebook, "One day you ordered a Happy Meal for the last time and you didn't even know it."

Well, the fast food giant's upcoming campaign will give adults a chance  to revisit a part of their childhood.

Starting next Monday & running through October 30, McDonald's  will offer the Cactus Plant  Flea Market Meal Box.

The box comes with a meal & a classic McDonald's character: Grimace, the Hamburglar, Birdie & newcomer Cactus Buddy.

The Cactus Plant Flea Market fans can also win merchandise by participating in a sweepstakes through the official McDonald's app.

This isn't the first time McDonald's has teamed up with big pop culture names to boost its sales.

Previously in 2021, McDonald's released the BTS Meal in collaboration with South Korean Boy Band, BTS.

In 2020, McDonald's collaborated  with American rapper Travis Scott, marketing his favorite meal: a  Quarter Pounder, fries & a Sprite.