Are you a Big Bang Theory fan? Think you can come up with the best costume of your favorite cast member? Show us your best Big Bang Theory costume and you could win a prize pack featuring:

-An autographed script
-A surprise from the Big Bang Theory wardrobe closet

Photo: Cliff Lipson/CBS 2011 CBS Broadcasting Inc.

Here’s what you have to do, upload a photo of yourself dressed as your favorite Big Bang Theory cast member by Friday, November 2nd. Five finalist will then be hand-picked by show staff. Voting on these photos begins on Tuesday, November 6th and the winning photo will be relived on Friday, November 9th.

For more information, official rules and where to submit your photo click here.