An eBay user is selling a piece of gum that was allegedly chewed by Robert Downey Jr.

The gum was obtained at the Hollywood Walk of Fame ceremony for actor and producer Jon Favreau, where Downey was in attendance.

The starting bid for the chewed gum is $40,147.47.

The auction ends on Friday, April 1, and the gum will be sent to the winning bidder in a plastic container.

The seller claims that the gum can be tested for Downey’s DNA.

Downey was at the event to honor his “Iron Man” director, Jon Favreau.

During the ceremony, Downey jokingly placed his gum on the star on the sidewalk.

The eBay seller was able to grab the gum from the star while it was still fresh.

The seller claims that the gum is in the same condition as when it was obtained and cannot be returned.

Robert Downey Jr. is producing a remake of Alfred Hitchcock’s “Vertigo” with his wife, Susan Downey, via their production company, Team Downey.

Steven Knight, the creator of “Peaky Blinders,” will be writing the script.

Downey is also set to appear in the upcoming HBO series, “The Sympathizer.”

In “The Sympathizer,” Downey will be playing multiple supporting roles as the main antagonists, all of whom represent a different arm of the American establishment.

The show is based on the 2015 Pulitzer Prize-winning novel by Viet Thanh Nguyen and takes place during the final days of the Vietnam War in 1975.

The story follows a French Vietnamese spy known as the Captain, who lives in Los Angeles.

When spotted on set in January, Downey looked unrecognizable, sporting a bald cap prosthetic and a fuzzy red wig.

He also appeared slimmer.

Fred Nguyen Khan, Toan Le, Vy Le, Alan Trong, and Sandra Oh are among the cast members.

The gum-selling eBay user noted that the gum was straight from the mouth of the illustrious Robert Downey Jr.

and was chewed by the Marvel star.

The eBay listing has garnered attention, with some speculating that the sale may be a hoax.

However, the seller claims that the gum is legitimate and can be tested for Downey’s DNA.

The eBay seller notes that they were in the area during the event and were able to grab the gum from the star.

The seller emphasizes that the gum is in the same condition as when it was obtained, and it cannot be returned.

The starting bid for the gum is $40,147.47, but the price can go higher if a bidding war develops.

The auction ends on Friday, April 1.

Robert Downey Jr. is known for his roles in films such as “Iron Man,” “Sherlock Holmes,” and “The Avengers.” He has won several awards throughout his career, including two Golden Globe Awards and a Screen Actors Guild Award.

Downey has also been recognized for his work in philanthropy, including his support of the Motion Picture and Television Fund.

Despite the gum’s high price tag, some fans may be willing to pay top dollar for a piece of memorabilia associated with the famous actor.

The sale of the gum has generated buzz online, with many people expressing their disbelief at the high price.

Whether or not the sale is legitimate, it is clear that Robert Downey Jr.