Found: Garage sale Value: $2,000,000 The early works of Andy Warhol contain some of the most valuable pieces in modern art. This sketch by the famous artist isn't close to being one of the highest valued, but it does represent a great investment return after a British businessman bought it for just $5. Andy Fields bought the sketch as part of a collection of five paintings while at a Las Vegas garage sale. When he brought the paintings to be framed, Fields learned that the sketch was a Warhol work by the framer. After bringing the lucky find to an appraiser, it was valued at the tidy sum of $2 million.