Having made a Japanese-style bottle with black clay, the problem was how to decorate it! Black clay doesn't take most glazes very well as the high level of iron oxide in the clay just stains the glaze, so it effectively 'disappears' when fired. Possible solution? To wax part of the black clay and then clear glaze, to give a contrasting matt and shiny pattern. So here is today's effort - the Japanese Kanji symbol for 'bottle' painted in wax before dipping in clear shiny glaze. It looks great at the moment (before firing) but may look less successful when it's been in the kiln as the apparently white glaze will become transparent. We shall have to wait and see!