Darth Vader

"Darth Vader is always the number one Star Wars costume and we don't expect it to be any different this year," says Shari Maxwell, vice president of Extreme Halloween, Inc. So while this costume may not be the most original, it will be one of the most sought after. Hit your favorite costume store or Web site soon if you want to get your hands on Vader's attire.

If you opt to go the homemade route, you'll probably still want to purchase the villain's telltale black mask and light saber. Add them to solid black pants, boots, shirt, and cape, and you're ready to wreak havoc throughout the galaxy.