To make the frosting, melt the marshmallows and water in the microwave at 15 second increments. Cream the butter and vegetable shortening, then add the marshmallows. Add enough powder sugar until it gets to stiff piping consistency, then blend 1-2 tablespoons of milk.

Melt butter and mix in crushed graham cracker. Then spoon to the bottom of each ice cream cone.

Add a few mini marshmallows to each cone.

Fill with cake batter of your choice, and bake based on your recipe.

Let cool and top with marshmallow frosting.