Oz really is a center of innovation and design. Look what they are doing with surfboards. Made from bamboo this stick is 15% lighter than normal, with more control and speed in turns, that resists denting. It's made with two third less toxic chemicals and has twice the strength of fibreglass and six times steel. The primary strength of the board is stored in the skin (instead of the stringer) which allows for rail to rail flex, with the weight distributed away from the center of the board.
Awesome, a board made from grass.
I have got to figure out the how to technique for building this board. I can see it's applications used on kayaks and waveskis.