Simply rent a wedding dress. She wore that on M PV. It's her most famous one, moreover, suits for formal birthday party theme and it's not really hard to look for a similar one.
Or maybe an evolution PV outfit.
If you're in an tight situation, go topless with a long hair extension and a pair of jeans. If you don't have hair extension, well, get a short cut quickly and just splash sands on yoru body.
