Thanks for your comment! I wondered if this silly idea today might be interesting or even help someone with the same zipper fail. The funny thing was the next post I looked at was about 'what happens when Dad is left with the kids' - it had a picture of a much bigger zip tie used to "secure" a ponytail ! LOL My daughters have long hair so now I'll be ready with a zip tie when the hair elastics go missing. The post is good for a laugh: https://steemit.com/parenting/@penguinpablo/10-reasons-why-you-should-never-leave-your-baby-alone-with-dad