As we didn't have a kiln we made a number of small pieces with Raku clay and when dry we fired them in an oil drum which Becky's husband very kindly cut in half for us. For safety, we wrapped the pieces in newspaper and heavy duty tinfoil. I explained to the students that we would probably have some breakages as the clay was not bisque fired and sure enough as the temperature rose loud bangs could be heard. It was great fun and the students really enjoyed it, even though most of the work had some damage they now have in insight into what working with real clay is like.