Cash Bar Wording Birthday Party . Cash bar tacky for a 50th birthday party? It is hard to come up with the perfect birthday invitation wording for an adult’s party. Cash Bar Wedding Reception Sign from www.zazzle.com I've looked at this thread in the wedding forum and there are lots of opinions. I've been to birthdays that are the same. August 10, 2016june 10, 2016 by denay.