First, fold the towel horizontally about 1/3 of the length. Then fold it in half lengthwise.

Next, cut a quarter-circle out of the folded corner for the neck. Cut smaller first. You can lengthen or widen if necessary.

Open up the towel lengthwise and cut up to neck opening. You should have a lollipop-shaped opening now.

Hem the sides of the bib by turning them under twice. Alternatively, you can use bias tape rather than hemming, but this way is more thrifty.