The cast will be auctioned on eBay after Thursday night's "The Colbert Report," Comedy Central said Wednesday. It has been signed by New York Mayor Michael Bloomberg, CBS "Evening News" anchor Katie Couric, NBC "Nightly News" anchor Brian Williams, Fox News "The O'Reilly Factor" host Bill O'Reilly, House Speaker Nancy Pelosi, NBC "Meet the Press" host Tim Russert and White House Press Secretary Tony Snow.
Bids will be accepted until Sept. 3, with the winner to be announced the week of Sept. 10 on the "Report."
"If I had known that it would give me the opportunity to help our wounded veterans, I would have shattered my triquetrum a long time ago," Colbert said in a statement.
The 43-year-old comedian injured his wrist June 27 in a fall while running around his New York studio before tapping an episode. He did not publicly reveal the injury until he was fitted with the cast, which he unveiled on the program's July 26 episode.
He has since created a red "WristStrong" bracelet, which parodies the yellow "LiveStrong" bands developed to benefit the Lance Armstrong Foundation.
Proceeds from purchases of WristStrong bracelets (which can be bought at www.colbertnation.com) will also go to the Yellow Ribbon Fund.