Which iconic food product's packaging was originally designed to solve a major problem with military rations during World War II?

Test your knowledge about the evolution of food packaging design! Some of the world's most recognizable food products have fascinating stories behind their distinctive packaging. These designs aren't just functional—they're strategic marketing tools that have helped build billion-dollar brands. How well do you know the origins and innovations behind the packages sitting in your pantry?

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Pringles potato chips (stackable tube to prevent breakage)
M&M's candies (candy shell to prevent chocolate from melting)
Coca-Cola (contour bottle design to be recognizable by touch in the dark)
Spam (can design to increase meat preservation time)