The cone-shaped plastic bags can be hard to find, I was able to find them at the local cake decorating store, but Amazon also carries some.
All you need food-wise is some hot cocoa powder, (mine has mini marshmallows, mixes in but just your favorite will do).
Chocolate chips(dark, milk, white, butterscotch, or maybe a combination?),
Miniature marshmallows,
And some extras, to serve as a "cherry". I used peppermints, but I am thinking red hard candies, red gumballs, or even a red lollipop inserted into the marshmallows would work..
Next comes the tricky part. I used a combination of guesstimating and trial-and-error to get the ratios right. I didn't measure anything, but I am sure the Family Fun website would have a tried and true system to get a realistic-looking cone.
After filling your "cone bags", simply secure the top using twist ties or rubber bands, and VOILA. A Hot Choco Cone for any winter day.