While I was at Naperville, I ate lunch at Panera Bread several times. A Canadian friend said he enjoyed eating at Panera because their black plastic drinking straw made perfect pipe loads, as he grab a handful for his cold drink. A coat of dullcote and it was ready. What I noticed was the Panera straw was a smaller diameter than the standard McDonalds straw, but not as small as coffee stirrers. Might be the perfect size for drill pipe.