Also new for Halloween 2010: Wicked Wonderland. A more sinister look for male characters, and a tarted up Alice and Red Queen.
The Wicked Wonderland Red Queen costume has cheesy gold inserts and matching crown.
The Wicked Wonderland Alice isn't the slightest bit creepy. Since her costume doesn't come with the knife, maybe you could punch it up a notch by supplying your own super-scary knife.
The White Rabbit scared me so bad when I saw the eBay listing, I actually yelped out loud.
The Mad Hatter comes with a super sinister half-mask.
Or you can buy the full Mad Hatter mask separately.