This was a novelty toy released in the 1970s by Gary Dahl, an advertising executive. The toy was simply a small, smooth, polished rock that came in a cardboard box with air holes and a carrying handle. The toy was marketed as a low-maintenance “pet” that required no feeding or cleaning. The concept was a hit and the toy became a popular fad, with millions of units sold. Despite its simplicity, this toy came with a humorous training manual that provided instructions on how to care for and train the toy. The manual included instructions on how to “housebreak” it and how to teach it tricks. The toy was a humorous take on the trend of people owning pets, and it became a cultural phenomenon of the 1970s.
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