Kids are the best accessory, especially at Halloween. You can give them a costume and not have to worry about whether or not they can walk in them. You have all the control in what they wear and at the end of the night you can steal their candy.
For example: did my sister want to be a fluffy bunny? No, she probably wanted to be a puppy. But, I got to stand next to an adorable child and most likely got to steal her candy at the end of the night.