I just saw this on one of the cooking blogs I frequent. Paper water bottles. Recyclable and made from sustainable materials. Not only is it a water bottle but, it can be conveniently sold as tear apart six packs and cases with minimal outer packaging.
I was a little concerned that their utility might be lost since they are not resealable, but they do have a sanitary top (not sure if it's leakproof) for the bottle and they have thought about how to reduce litter while maintaining necessary sanitation.
At first, I was hoping this would replace all the soda cans manufactured, but I doubt this paper product can withstand carbonated water pressures. But, I would love to get all the milk I drink (2 gallons a week) in paper bottles. Individual juice boxes, bottled water (if you must buy the stuff), and it could even replace yogurt and sour cream containers. Too cool. Companies, you have a waiting consumer.