Find the Halloween eggs filled with candy.
Plastic orange and black eggs (you may have to paint them). Candy.
The is game is just like an Easter egg hunt. Buy plastic eggs and paint them in Halloween colors. Put candy in them and then hide them. The prize can be the candy inside or some of the eggs can contain notification of winning a small prize, a party favor, a quarter or dime etc. Have the kids gather the eggs in their Halloween buckets. Play fun music like the monster mash or a spooky Halloween noise tape while they search.