For the bases I used a tatara machine, which is a tool for mass production. The texture was created by attaching new clay to the surface. Through this process, which involved sprinkling dried gendo (original soil)  powder on the surface of the soft clay, the variation in hardness produced a cracked expression.

On some of the other surfaces, I applied a muddy liquid made by dissolving soil in water. The differences in dry shrinkage were used to draw out the soil’s expressions.
Tetsuya Hioki, Kaneri Toryo