Haha, those are awesome. I love the Sally one.
Well, me, my sister, and my cousin were going to throw our annual party and go as characters from Twilight (Bella, Alice, and Victoria), but the party had to be canceled last minute and the three of us won't be together on Halloween. So me, my sister, and at least one other friend of ours are just going as vampires. We have the make-up to make our skin pale and sparkle-y (which we tested out today, so awesome), so we're still going along the lines of Twilight vampires, just no specific characters. We usually would have been a little more original, but it's kind of last minute and we're short on cash. haha.
Halloween is also my favorite holiday. =]