Which post-WWII military surplus product became so commercially successful it transformed from government disposal to a global retail phenomenon with its own distinct brand identity?

After major conflicts throughout history, surplus military equipment has created fascinating retail phenomena. The post-war military surplus industry has shaped consumer products, pricing strategies, and retail channels in ways many don't realize. This trivia explores how military history directly influenced retail markets and consumer product availability after World War II, creating one of the earliest examples of large-scale product repurposing and sustainable retail practices.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The Jeep (Willys MB)
The P-38 Can Opener
The M-1 Field Jacket
The Army Navy Store retail concept