my guild made what are called dinner scarfs instead of bibs. the back of the neck was curved and fairly narrow (about 3-4") and the ends were much wider. I don't have a pattern, our community service chair just made one up. the nice thing about dinner scarfs is that they don't look like bibs, are easy for a caregiver to just drape over the persons shoulders. best way to describe is they are like jacket interfacings but much wider. we cut 4 layers, sewn together at the back of the neck, stitched, turned and then the open spot for turning was machine sewn.