Santa also brought a new tip for my piping bag. The No. 2110 (1M) is the attachment you need to create great big swirls of icing to pile on top of your cupcakes. It usually requires a large coupler (the plastic part to attach the tip to the bag), however, you could probably get away with not using one — just slide the tip into your bag. Here is a good explanation of how to make swirls with your No. 2110.