The Gamucci disposable ones were being promoted yesterday in a cash and carry I go to now and then. I did try one and they are strange - you suck on them, but if you overdo it you wind up coughing because you get too much of the "smoke", underdo it and you get nowt. They work out more expensive than the brands at the lower end of the market, but are slightly cheaper than the premium brands. The "smoke" is moderately authentic though