A princess costume is always a hit. Separate yourself from the crowd with some inspired accessories.

The Hair:
This is a take on a French princess, the wild hair is suitable for a Marie Antoinette costume, but your best bet would be to spray it white.
the Outfit:
Find a cheap prom dress at your local thrift store. If you like, you can embellish it with fake pearls and costume jewelry by hand-stitching these pieces at the waist and collar. Some fairy tale princesses also wear capes. I've put together a complete tutorial on how to make a hooded cape.

Complete Tutorial:
For lots of resources on making a princess costume, visit the photo tutorial.

Need More? Visit our complete guide to Costume How-To's and Ideas.