Photo: Getty Images
- The gum chewed by Robert Downey, Jr. at 'Iron Man' director Jon Favreau's Hollywood Walk of Fame ceremony has hit eBay.
- The starting bid is $55,000.
- The seller insists he was at the ceremony where Downey pulled the gum out of his mouth and stuck it on Favreau's brand new star to "make it official".
Robert Downey Jr.'s Gum From Jon Favreau Walk of Fame Hits eBay for $55k
Photo: Getty Images