Tressostar Cotton Handlebar Tape
Classic Tressostar cloth handlebar tape in a variety of colors. It looks great under shellac.
Price is per roll. Most bars need two rolls, but many folks use three or four to get more overlap.
I don't actually use this tape on my handlebars, except to finish off the taping job at the ends. I find many other uses for it, including notably that it makes a great wheel rim strip.