I had an order for 2 dozen cupcakes that were going to a class birthday party at a local school. I striped a bag with blue and red icing, and filled bag with white BC.
I piped on frosting in a circular motion starting from the center with only a coupler in the pastry bag. I then rolled outer cupcake in color round sprinkles.
What more could a group of 8 and 9 year olds want! ;) lol