"Our wedding will have an open bar. It will also be heavily photographed, so any drunken shenanigans will be well documented and thoroughly mocked for years to come. Proceed with caution." I'm using this.
Treat your guests to refreshing drinks in your own monogrammed plastic wedding cups. Your friends and family will love the personalized touch, and if you have extra after the wedding they will be super cute to use for parties in your home!