Costume assistance, cant find it anywhere :( *Will choose a best answer*?

I really wanted to be a Rockford Peach from the movie A League of Thier own. I can't seem to find it anywhere. There is on on the eCrater site but when you go to check out it doesn't even ask which of the two sizes you would like so I don't feel comfortable paying for it. Anyone know where I can find one, or have any suggestions for a cute and not as common halloween costume. (I am very into vintage costumes, but everyone does alot of them and I wanted to be a little different) Thank you in advance :)