What are fun halloween party contests? help

So I already have:
booty shaking contest-
chugging contest-
best lap dance contest-

and other good ideas? thanks guys!

Truth or Dare contest...Kissing the best contest..I don't know elses.

I used to be a Disc Jockey. The best Halloween parties were the adult parties. One of the fun contests we did was musical chairs, but with a twist. You bring out a bunch of chairs and line em up. When you are ready to start the music, have the males attending the party sit in the chairs, and the women get to circle the chairs until the music stops. When the music stops, the women gotta find a lap to sit on quick. You can change it around to the opposite. Need more info, just funmail me.

There is a game called Sardines. Turn all the lights off first. One person goes and hides, while the others wait. After a minute everyone begins to search. When someones finds the person hiding, they must stay there where that person is and so on, untill there is one person left out. They are in for the next round. It's fun with about 10-15 people.