See http://www.nytimes.com/2013/02/27/dining/hacking-home-soda-making-machines.html?_r=0 for the titanic wave of creative carbonation... not even stopping for water or alcohol, but applied to sorbet, chocolate, dry sugar, and fruit (I have perfected carbonating applesauce myself). You can soon buy a carbonating refrigerator from samsung (important for liquid to be very cold before carbing). All kinds of gourmet syrups and strange new carbing technology, etc.