If you are familiar with the C02 cartridges that go into airguns, there are ways to use them to carbonate beverages quickly.
You want to google for a Cornelius keg ball lock quick connect fitting, a Cornelius C02 Charger, and a Carbonator cap.
The charger connects to the ball lock quick connect, and the quick connect snaps onto the Carbonator cap.
Used together, these will let you carbonate beverages in your favorite container with standard soda bottle threads.
The C02 keg charger
Cornelius keg ball lock quick connect fitting
carbonator cap, keeps the pressure in the bottle. MYOG directions on the internet.
They go together like this, 2.10 ounces for the pair. I don't know the weight of the charger, but it screws onto the threads. About 45 seconds to produce a sparkling beverage, using 3-5 grams of CO2 in the process.