i've done stuff like that before....except mine get more ellaborate...you take a tube (aquarium hosing) that you have no problems sucking through....and cut it about 2 feet long put one end around the end of your mouth peice and tape it in (electrical tape works the best and all the residue can be wiped off should you decide to use th epipe again).....then take a 20oz and in the middle of it somewhere you put a hole the size of the tubing....feed the tube in as far as it will go (the pipe needs to be able to sit on the table and you need to be able to tilt the 20 and still have some slack while keeping the end of the tube at the bottom of the bottle....seal around the tube in the 20 put a carb somewhere near the top of the bottle in the 20 then fill the 20 about an 1 inch below where the tube comes in with a mixture of crushed ice and water....fill the bowl then you know what to do