ShiShi

ShiShi is a contruction material made out of the white sand from Tsuki Heiya mixed with a secret ingredient and water.

Appearance
It is at first a viscous silver substance that can be shaped in any form you want. After it is left to be heated in the sun, it becomes as hard as stone. Although the material is mostly white, if it is combined with other construction materials, it can grasp a light shade of another color.

Production and Marketing
It is produced on Tsuki Heiya and exported throughout the Grand Line.

It is a very popular building material for houses, walls and even marine bases. An example of the use of ShiShi is in the construction of Marineford.