We've seen smores done several ways - I Heart Naptime shows them, and how to make them, on a stick. They look good enough to decorate with eat. They look so festive. I can see them with several small marshmallows too ..., maybe the mini marshmallows that are used on the outside of the milk chocolate bar could be used inside.
FYI - Notice the link shown on the photo is Your HomeBased Mom - guest writer that day for the blog I found it on.