03/28/2006 AT 07:45 AM EST
Brad Pitt, Ben Affleck and Laurence Fishburne have donated custom-made motorcycles to an online charity auction raising money for a planned memorial for the Rev. Martin Luther King Jr. in Washington, D.C.
"People are always quoting (Rev. King)," Oscar winner Morgan Freeman, who organized the auction benefiting the Dr. Martin Luther King, Jr. National Memorial Foundation, tells the Associated Press. "He's remembered as our prince of peace, of civil rights. We owe him something major that will keep him and his memory alive."
In all, four bikes are on the block: two from Affleck and one each from Pitt and Fishburne. Bids may be placed through Friday on the at charityfolks.com, Freeman says, adding that he hopes "people will overbid" for the worthy cause.
As described on the Charity Folks site, Affleck's "treasured" 2001 2-cylinder, 4 stroke Big Dog Bulldog "has very low miles and is in great condition ... from his home, to yours" (as of Tuesday morning, it was up to $12,000). Fishburne's bike ($11,000 so far) is a replica of the "Captain America" model in the movie Easy Rider. Pitt's bike, a Ducati SR4, had the lowest bid of the morning: $8,000.
Also available for a price: wedge-heeled shoes designed and signed by Jennifer Lopez and a DVD of Catch Me if You Can autographed by its costar, Tom Hanks.
Groundbreaking for the monument, to be built on the National Mall, is scheduled for this year, with the aim of dedicating the site in 2008.