These Rice Krispie treats ice cream cones are easy to make and a fun treat for your next party! After making the Rice Krispie treats according to the directions on the cereal package let the mixture cool a little. Once the cereal and marshmallow mixture cools a little add a scoops of the Rice Krispie Treats to ice cream cones. Top with a little frosting a sprinkles and you have a festive treat for birthday parties.