1. Combine popcorn and jelly beans in large bowl; set aside.
2. Microwave butter and marshmallows in large glass bowl on HIGH for 2 minutes or until marshmallows are puffed.
3. Stir in gelatin. Pour marshmallow mixture over popcorn and jelly beans.
4. Mix lightly until coated.
5. Shape into 16 (2-inch) eggs with greased hands.