The first piece are the "Save the Date" cards. These 4 x 6 cards are simple, but short and sweet designs that included their wedding colors, muted. They wanted to include that at their wedding, they will have alcohol to draw their attention in a joking manner.
The second piece is the front and back of their invitations; the date had changed and they wanted to incorporate a marble-esque feel to their invitations as well as a more closer resemblance of their colors which is navy blue and gold. It is more elegant than the save the date, but still a very simple design.