Raden, a decorative lacquerware technique, uses the glimmering inner layer of shells. The inlay appears to float resplendently on the black lacquer, inspiring artisans to take the art into the future.

The dark-grey, clay roofing on shrines, temples, and Machiya townhouses is buffed and smoked to boost durability, water resistance, and luster. Craftsmen and roofers uphold the traditional techniques.