Gary Ross Dahl created the Pet Rock, a simple yet absurd fad that captured the hearts of Americans in 1975. With a 32-page instruction manual full of puns and gags, Dahl's idea became a sensation, selling over 1.5 million units and earning him a six-figure payout. The Pet Rock's popularity was short-lived, but it remains a beloved piece of American pop culture, symbolizing the fleeting nature of trends and the power of clever marketing.
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