Think you can get away with wearing just any old Princess Leia costume to your Halloween party this year? Wookiee mistake.

For an estimated $80,000 to $120,000 (depending on the bids received, of course), the metal bikini designed for Carrie Fisher to wear in The Return of the Jedi (1983) can be yours. It’s one of more than 50 pieces of Star Wars memorabilia being sold in an auction hosted by Profiles in History. (The actual bikini in question wasn’t worn on camera; costume designer Richard Miller made a new one for Fisher after she lost some weight during filming. )

Earlier designs of the costume are also for sale, along with sketches by Miller and a letter of authentication signed by the artist.

Among the other items available are a prototype of Darth Vader’s helmet, which is expected to fetch between $30,000 and $50,000, and the original model of the Rebel Blockade Runner, which the auction house estimates will bring in between $200,000 and $300,000.

If Star Wars isn’t your thing, Profiles in History is also selling memorabilia from Star Trek, Back to the Future, The Terminator, Jurassic Park, and Indiana Jones. (You can view the auction catalog here.)

Get your clicking fingers (and your bank accounts) ready: Bidding on the one-of-a-kind items begins at 11 a.m. on September 29 and ends October 1.

[h/t Rolling Stone