McDonald's is selling a Happy Meal for adults. How to get Cactus Plant Flea Market box

McDonald's latest offering is proof you're never too old for a Happy Meal.

McDonald's launched a partnership with Cactus Plant Flea Market which includes a Happy Meal for adults, featuring collectible toys starring the fast food chain's signature mascots including Grimace and the Hamburglar.

Consumers can choose between a Big Mac or 10-piece Chicken McNuggets for the Cactus Plant Flea Market box, as well as a side of fries and drink. Each meal will have one of four figurines: Grimace, the Hamburglar, Birdie and Cactus Buddy. Each figurine offers a twist though: All four have two sets of eyes.

The Cactus Plant Flea Market also has a site where consumers can purchase McDonald's-themed apparel including shirts and sweatpants.

"We're taking one of the most nostalgic McDonald's experiences and literally repackaging it in a new way that's hyper-relevant for our adult fans," said Tariq Hassan, McDonald’s USA's chief marketing and customer experience officer, in a statement.

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How to get Cactus Plant Flea Market box

The limited edition box launched on Monday and will be available while supplies last. McDonald's customers can order one in-restaurant or the drive-thru, as well as by delivery or through the McDonald’s app.

Customers who buy the Cactus Plant Flea Market Box on the McDonald’s app will automatically be entered for a chance to score exclusive merchandise, the restaurant chain said.

This isn't the first time McDonald's has launched popular meal collaborations. The chain has previously launched limited-edition celebrity meals featuring BTS, Travis Scott, J Balvin and Mariah Carey.

Follow Brett Molina on Twitter: @brettmolina23.

This article originally appeared on USA TODAY: Cactus Plant Flea Market: How to get McDonald's Happy Meal for adults