I really like this popcorn ball recipe, because it's all done in the microwave. The marshmallows are such a nice binding agent. The recipe we used is at the bottom of this post.
After your popcorn ball mixture has been prepared, fill your ice cream cones with some seasonal candies. We used Candy Corn M&Ms. Not only is it a nice surprise when you get down to the cone, but it also helps with weight distribution. Otherwise, your cones will be very top heavy.
Good Cook provided us with a fun kit to make our popcorn balls. We used the Good Cook Popcorn Baller to shape our popcorn balls. This time we didn't fill the baller completely, because the balls would have been a little too big for our ice cream cones.
After each ball is shaped, dip it into some festive Halloween sprinkles.