Speaking of deluded actresses: The black leather motorcycle costume Megan Fox wore as Mikaela Banes in the blockbuster 2009 sequel Transformers: Revenge of the Fallen is going up for auction near Los Angeles next month.

The motorcycle costume worn by Fox, along with her shorts and tank top, are estimate to sell for approximately $3,000 to $5,000. Auctioneer Profiles In History is hosting the auction Oct 8-9 event. Joe Maddalena, president of Profiles In History, believes anything worn by the modern day sex symbol will be in great demand by collectors.

“‘Transformers’ made her a star and I expect her costumes to perform very well at auction. The 17-foot Bumblebee robot speaks for itself … it’s such an amazing spectacle and a pop culture icon that I expect bidders to go crazy,” Maddalena explains.

Also available are a 17-foot-tall robot and more than 100 other props, costumes and set pieces from Michael Bay’s movie franchise. The 3,200 pound (1.45 ton) Hero Bumblebee robot from the first movie is expected to fetch $60,000 to $80,000. Bids can be placed in person at the auction in Calabasas, outside Los Angeles, by phone or online.

Transformers: Revenge of the Fallen is the biggest grossing movie of 2009, with worldwide box-office takings of $831 million.