As the Fourniers point out, sometimes the best gifts don't cost much or anything at all. “Bronze is one of the most durable man-made materials, lasting thousands of years,” they said. “Rather than give the actual material for your anniversary, one creative way to use this theme is to apply the properties of this metal to your relationship.” That could take shape in the form of a poem, a letter, or a song in which you can reference the longevity of your love and marriage. They also suggest using the number eight, such as listing your eight favorite things about the other person or eight of your favorite memories from your married years.   They also love the idea of creating a scavenger hunt for your spouse. “This can be as simple as clues around the house, or as adventurous as a day spent exploring the city,” they said. “Each clue can be an opportunity to reminisce on a memorable moment from the past eight years.”