A true one-off and the third rarest of all Hot Wheels cars, this Chevrolet Camaro prototype was just recently discovered. It was found in a set of other Hot Wheels cars by self-proclaimed Toy Scout Joel Magee, known for his appearances on Pawn Stars and at collectible events. The Camaro in question dates to 1968 and, as with all early prototypes, was given its enamel white paint in order to check for imperfections. Very few prototypes made it to retail, and this one is even more rare thanks to its Hong Kong-stamped chassis. Magee, who calls it the "Holy Grail" of Hot Wheels collectibles, posits that it's worth as much as $100,000, and plans to keep it in his collection, displaying it at various events across the country.