dude get a socket rench ratchect peice and put it in the hole on a coke can or burn a whole that will fit the ratchet peice on a water bottle (I like water bottle or like mountain dew bottle better because it makes it taste cleaner or better at least I think) and you'll be set but you'll have to replace the bottle once in awhile. A ratchet peice is cheap and its really portable, you can take it almost anywhere incognito and it should be easy to find a drink can or waterbottle. You might want to burn a carb on the side of the bottle too.