Last night was at the ole CAZ, and saw some advertisement on the urinal I was using. I didn't survey the rest of them, because that would have been creepy, but I think that is a good place for an advertisement (wonder how long they will stay before management gets them removed).
90% of poker players are male, and the serious ones stay long enough to need at least one bathroom break, so this is the perfect chance to get the target demographic. Great job!