Pet Rocks

 Pet Rock Instruction Manual that accompanied every Pet Rock sold.

Pet Rock Instruction Manual that accompanied every Pet Rock sold.

It was the perfect pet in the later months of 1975. The "Pet Rock" was the most low-maintenance pet that a kid - or adult, for that matter - could want. It stayed put in its cardboard box (replete with breathing holes), it didn't make a peep (no worries about the neighbours complaining about a barking dog in the yard) and best of all: it scored its creator, Gary Dahl a few million bucks before the fad was over. And over it was in a mere few months; by February 1976, discounted Pet Rocks could be found on store shelves, and knock-offs were everywhere. Regardless, the fad was (low-maintenance) fun while it lasted.