For each napkin ring, cut a 1-1/2x7-inch piece of cardboard. Cut a matching piece from houndstooth, adding 1/2 inch to all edges. Center the fabric over the cardboard and glue the excess fabric to the back. Roll the shape into a cylinder, overlapping the ends 3/4 inch. Hot-glue in place. Slide a napkin, flatware, and a rubber skeleton into the caddy.
To make your own napkins, cut 12x12-inch squares of black-and-white toile. Press under the edges 1/4 inch twice. Machine-sew the hems, mitering the corners for a neat finish.