Say it once, say it twice, take a chance and roll the dice

Planning my Hallowe'en costume right now. I have an idea, but i need to rope a girl into it to pull it off (Toya'll probably do it, seeing as she's now single so won't be wanting to theme with a partner - when I can get hold of her I need to ask). Basically, I'm thinking gender-swapped quasi-gothic Black Dahlia & Bugsy Siegel i.e. me as a 1920s flapper, the girl as a gangster in a zoot suit and fedora, possibly both with appropriate mutilations. This could be AWESOME if pulled off right. :D

Only problem I foresee is getting hold of appropriate shoes - going through a cross dresser's shop chance to be expensive, and I'm on a limited budget. *wonders if it's possible to rent size 13 patent leather slingbacks*