How A Man Made $56,166,419.02 In 6 Months...Selling Pet Rocks

petsdo.com — In 1975, Gary Dahl working as an advertising executive at the time, launched the sale of the pet rock which quickly transformed him into a multi-millionaire. This enormous profit is much more impressive considering it only took him six months to achieve his multi-millionaire status and the extremely low cost of the product. Aug 28, 2007 View in Crawl 4