Have each guest bring a picture of a favorite memory with the bride or groom to display and then give to the bride at the end of the shower. OR use this idea to display pictures of the bride and groom for family
Wedding Thank You Card: "Love and Thanks" with the names of the bride and groom with the wedding date. By violaprints on Etsy. I saw this and fell in love with it because it's so different from your average wedding thank you card.