"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.
The bride and groom requested that their guests respond to the invitations with a piece of fabric- any fabric- and was incorporated into a quilt for the newlyweds to have for the rest of their lives. What? Love!