One way of firing decorative tires (after they have been bisque fired, of course) is to wrap them in a combustible material (here, Gazzetta dello Sport) and placing them in an open fire. The result is a variegated, beautiful finish. These tiles are to be used for decorative purposes only and will be mounted in frames.
We took advantage of the beautiful fire and threw a couple of steaks on the grill after the firings were finished. I will post next about the finished, mounted tiles, including a few glazed ones from the last kiln firing.