Which of these food brand collaborations never actually happened in the retail market?

In recent years, food brands have increasingly collaborated to create buzz-worthy limited-edition products that combine their iconic flavors. These unexpected partnerships often generate significant social media attention and create collector's items for food enthusiasts. Test your knowledge about some of the most notable food brand collaborations that have appeared on store shelves!

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Taco Bell and Doritos (Doritos Locos Tacos)
Oreo and Dairy Queen (Oreo Blizzard)
Heinz Ketchup and Hershey's Chocolate (Chocolate Ketchup)
Reese's and Krispy Kreme (Reese's Peanut Butter Doughnut)