Disposable Bag Method

1. Slip the star nozzle into the end of a disposable piping bag so it sits right at the end.

2. Mark with a marker a 1/4-inch from where the nozzle ends, then remove the nozzle from the bag.

3. Cut the tip of the bag off at the 1/4-inch mark, and reinsert the nozzle, which will poke out the tip of the bag so you can pipe on swirly icing.

Zippered Plastic Bag Method

1. Wrap a piece of sticky tape around one corner of a zippered plastic bag. If you don't have a zippered bag, any bag made from thick plastic (not a regular shopping bag) will work.

2. Wrap a second and third piece of sticky tape around the corner of the bag so the tip is reinforced.

3. Cut the tip with the scissors to make a slit around 1/4-inch long in the end of the tip, then make another slit in between the first two, so the tip of the bag has a cross slit into it. The cross slits will make the icing come out in a swirly pattern like a star nozzle would.