Here's a great article giving a few healthy Halloween treat ideas, http://www.fitness.com/articles/478/healthy_halloween_treats.php. I especially like giving out mini dark, organic chocolate bars, such as Art Bars and Dagoba bars, which you can readily purchase at Whole Foods. When Halloween is over make sure you get rid of all the candy around the house, so everyone will not be tempted to keep filling up with sugary snacks and desserts.
Happy Halloween,
L.