if your area has a street where there are several (like 4+) bars, do a bar crawl, dressed up like an idiot/make it obvious your getting married. its the easy way out, and you dont have to pay for any drinks/?
we took my friend to vegas for his. that might also be cliche... but smoked cigars and reminisced and shit. kind of boring, but he was cool with it, and thats the point i guess? might have to go to vegas for the next friends' in the summer, i dont know... i wasn't the best man in either, so i had/have no say i nit.