Do you want an excuse to wear that ab-fab hot pink/jewel encrusted dress you wore to prom when you were 18? Do you also still fit into it – more or less? Awesome. Put that on, you have a Halloween costume!
Fashion a sash out of some wide holiday ribbon and give yourself whatever title you want! Prom Queen 2011, Miss Teen South Carolina 2007 (look it up – and carry an atlas. Shut up, maybe it’s not timely, but it’s still kind of funny? No? Fine, you come up with something, we can’t think of everything!). Or maybe you don’t have a sash because you’re a royal princess! It’s up to you. Now, make a tiara from cardboard wrapped in tinfoil and you’re all set.
If you want to spook it up a little, add some bruising and stitches with purple and black eye makeup and maybe some fake blood to be a dead prom queen.