20 Heat Resistant Piping Bags 5 "Lifesaver for children's chocolate party" Fiona 25 September 2018 I bravely decided to have a children's birthday party where 12 girls made their own chocolates. I saw and bought these piping bags on a whim and so pleased I did. Broke up the chocolate, stuffed it in the bags, folded and bag clipped the open ends to be on the safe side and then microwaved them in short bursts until all squishy and no lumps. To use I then snipped off the end and piped into the chocolate moulds. In hindsight the thought of stuffing enough molten chocolate into normal piping bags or spoon filling the moulds would have been a nightmare. These saved the day!