This is a quick cinch for paracord (for light use, like hanging camping lights) - this is a quick, easy way to attach & remove lightweight things around the house, workshop, or campsite. This can function like a faster & easily adjustable alternative to tying knots. They’re small and print quickly, usually costing less than one cent!
For strength, print with 100% infill. These can also be made thicker if you need them to carry more weight, although for anything more than a few pounds, I’d tie a knot.