6. Judy Garland’s Wizard of Oz Dress – $1.56 million
Here’s the third of four Wizard of Oz entries in our list. If we were one of the costume or prop designers, we would have been scooping things up left and right to make sure future generations of family members were filthy rich. This is the classic blue dress worn throughout the film. As an investment, it’s better than the stock market. In 2011, the dress was sold as part of the Debbie Reynolds’ massive memorabilia auction. The purchaser only had to wait four years to turn a tidy $660,000 profit on the dress.