Sand resonates to different frequencies to create different patterns. (click through for videos)
Calcareous septa of Fungia fungites, a mushroom coral photographed by Wolfgang Seifarth, a German molecular biologist, in the Maldives.
Karen Margolis - Google Search
Gallery : Magic Carpets
(Wider view of) saltworks in Niger by George Steinmetz - aerial photography
laminated plywood, Michael Kukla
Add leaves to baking soda and water, boil, and then use the skeleton for your crafting needs!