Halloween costume ideas

I am looking to have a little fun, so I am thinking about going dressed as a girl, (I'm a boy). Anyway I need ideas for a costume, and please don't forget about the details.
My girlfriend thinks it will be funny to see me deal with a skirt for a day,...

and well I think it will be fun.
So please drop some ideas.

I say go all out and be Marie Antoinette!

To really get the effect you will need a skirt, shirt and pantyhose. If you're really brave you could also wear a stuffed bra. You'll also need jewelry, shoes (preferably ones with heals), a wig, and makeup.

Have fun with it.

Try St Trinians style??

mini skirt, fish nets and heels aha...+ make-up obvs aha