Guest bring their own drinks??

I have a good idea. What about having a special mixed drink fountain? I went to a few weddings where they rented a fountain and you put whatever mixed drink you want in there. I went to one with fuzzy navels and the other had margaritas with limes in a bowl and a plate with salt. It was really nice. I am considering do this myself. I am just waiting for the call from the banquet manager to see if she permits this. They rent them out at a place calle "action party rentals" in my area, maybe you have something similar in your area?

I don't think it's wrong to let your guests know that if they would like a hard drink, they are welcome to bring their own booze... I don't think anyone is demanding people to bring it here- I definately wouldn't put it in your invites, just let people know as you talk to them about the wedding that you'll have beer and that hard liquor is welcome, but not required.

When people ask me if there is anything they can do to help or if there is anything they can bring I have been saying bring what ever you like to drank so that way I am not telling them, they are offering.

I know that etiquette says you aren't supposed to put in the invites that people are supposed to bring their beer, but my sister put an insert for her wedding that the she was having a potluck dinner and that the guests could bring a dish to share with everyone and drinks of their own choice. I am also having a semi-formal wedding. I am providing bbq style finger foods but I will take after my sister and put a slip in my invites that the guests may bring a beverage of their choice for the reception. In today's economy I think a little bucking of tradition and etiquette is not too bad.

@leyila- Im right with your sister, I made up a cute little insert and slipped it in with the map in the invitation. I dont think most people mind, as long as they are warned!

I think that providing just beer or wine is not only perfectly acceptable but a good idea. You could either end up with a $20,000 bar bill or if you limit it some people will drink a lot and others might not even get to have a drink. Like some other people sad 3 kegs of beer is a lot of beer. Getting two kegs and a case or two of wine might be better. Depending on how many people you have.