The geometrical, yshape of a clever bottle for los angelesbased y water inc. Is another package in which shape tells the brand&rsquos story. Y water is designed to appeal to elementary school children through packaging. Natural rubber connectors, called &ldquoy knots,&rdquo enable kids to connect empty packages as moleculelike formations and prolong the life of the bottles by transforming them into toys or building blocks.when looking for a lowcalorie, organic drink kids, obesity is a major problem among kids, y knot is a low calorie organic drink solution.