When crafting a zip-up sweater, especially for toddlers or when adapting for special needs like a broken collarbone, choosing the right zipper is crucial. Non-separating zippers are often not ideal for garments that need to open fully, which can cause issues like splitting at the bottom as experienced here. One useful trick is to carefully sew a small stopper at the zipper’s base where it tends to separate, reinforcing the closure without removing the entire zipper. Additionally, if the zipper pull comes off or the fabric around the zipper loosens, try adding a custom fabric flap or a snap button at the bottom edge. This can act as an extra barrier preventing accidental opening and provide more stability. When modifying zippers originally intended for bags, it's important to assess whether they are designed to separate fully, as forcing them might damage their mechanics. For fellow crocheters and beginners, this experience highlights that it's perfectly normal to encounter such hiccups—the crafting journey involves trial, learning, and adapting. Patience and creative fixes can save a project and even inspire unique design elements. Sharing these moments, including zipper fails and repair hacks, enriches the crafting community and provides invaluable tips for everyone learning along the way.