While piping bags are useful, you can easily substitute them with a plastic sandwich bag, especially a larger zip-top one. Many people already have these in their kitchen, and they're quite easy to use. How to Use a Plastic Bag for Piping: Fill the Bag: Spoon the batter into the bag, pushing it towards one corner. Secure the Top: Twist the top of the bag tightly, holding it firmly in place. Cut the Corner: Use scissors to snip off the tip of the corner. Start with a small cut; you can always make it larger if needed to adjust the flow of the batter. Start Piping: Hold the bag at the twisted end and gently squeeze, guiding the batter out of the cut corner to pipe your ladyfingers. This simple and effective method allows you to pipe ladyfinger batter without needing specialized equipment.