Ooho, a new edible water ball design, could mark the end of plastic bottles and change the world.Three London-based industrial design students have developed a water container that is cheap, hygienic, strong and edible.Rodrigo García González along with his fellow students Pierre Paslier and Guillaume Couchethe have made Ohoo, the jelly-like and tasteless bottle, making use of a technique called spherification. The technique was first used in 1946 and is still used in making fake caviar and bubble-tea pearls. Ooho consists of a gelatinous membrane layer, and is made using brown algae and calcium chloride.The design could drastically decrease the global annual 2.5 million tonnes of plastic waste, and reduce environmental pollution overall.