Movie props are often discarded after filming, but some become priceless artifacts. The ruby slippers worn by Judy Garland in 'The Wizard of Oz' (1939) are the 'Holy Grail' of Hollywood memorabilia. Only four authentic pairs are known to exist. One pair was stolen from the Judy Garland Museum in 2005 and remained missing for 13 years before being recovered by the FBI in 2018. On December 7, 2024, that recovered pair was sold at auction for a record-breaking $28 million, making them the most expensive movie prop ever sold. Previously, the record was held by Marilyn Monroe’s white 'subway dress' from 'The Seven Year Itch' (1955), which sold for $4.6 million in 2011. The staggering price of the slippers reflects the deep cultural impact 'The Wizard of Oz' continues to have on generations of moviegoers.