The world doesn't need "expressions" of Lutheran identity. Instead, it needs Lutherans who can confess the eternal mercies of the Holy Trinity and the salvific power of Word and Sacrament Ministry.
Ad Crucem's Christmons are a collection of ancient Christian symbols and images from Bible stories, which remind us of our faith and help us to teach and confess Christ crucified for sinners.
The O antiphon for December 20, "O Clavis David", is a beautiful expression of Isaiah 22:22's prophecy about the authority of Jesus and the visible sign he has given us until His return to earth in power and glory.