Bid on cool celeb items!

TOM HANKS and wife RITA WILSON are sponsoring a charity auction on eBay Giving Works to benefit Shakespeare Festival L.A. -- and some serious, A-list prizes are up for grabs!

The successful bidder wins the chance to perform with Tom, Rita and an all-star cast -- including ANNETTE BENING, WILLIAM SHATNER, "Scrubs"' ZACH BRAFF, TIM ALLEN, CHRISTINA APPLEGATE and DAVID SCHWIMMER -- in a performance of Shakespeare's Taming of the Shrew at the festival on May 19.

Other items on the auction block include Tom Hanks' personal recording on the winner's answering machine or voicemail message; and two tickets to the NYC world premiere of Mamma Mia!, plus VIP access to cast after-party at the Boat House.

The auction went live on Thursday and runs through May 14, so head on over to eBay while there's still time to bid!