Which of these military history museum retail products unexpectedly became the top-selling merchandise item across North American military museums in 2019?

Throughout history, military museums and historical sites have developed sophisticated retail strategies to engage visitors and generate revenue. This trivia question explores an interesting case of product marketing that surprised industry experts. Think about how military history organizations have leveraged their collections and stories to create successful retail products, and test your knowledge about which unexpected item became a retail sensation.

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Replica Revolutionary War canteens developed through collaborative research between five major military museums
Limited edition 'Women in Combat' playing cards featuring historical female warriors from ancient times to present day
Historically accurate military ration chocolate bars packaged in era-appropriate wrappers from different conflicts
Collectible challenge coins featuring famous battle maps with augmented reality technology