A piece of gum that was supposedly chewed up and placed onto the Hollywood Walk of Fame sidewalk by the Iron Man actor is now being sold on eBay.
The bid starts at $55,000.
When "Iron Man" director Jon Favreau was honored with a star on the Hollywood Walk of Fame last month, Downey placed his gum directly on the star as a joke.
You can see that moment in this video:
Actor, director Jon Favreau gets star on Hollywood Walk of Fame
The eBay seller claims to have saved that very piece of discarded gum. It will be shipped in a plastic container to the lucky bidder.