So you would like to carbonate any drink? The DrinkMate Spritzer can help. It can be used to easily make sparkling water and other delicious drinks. It works on juices, iced tea, lemonade, and energy drinks. The Spritzer is portable and easy to use (just like the countertop version).
The unit comes with a Spritzer gun, fizz infuser, a carbonating bottle, and 2 CO2 cylinders. Expected to ship in October.