Fight Box: Write love letters to each other and place into a box along with a bottle of wine.nail it shut. When you have your first fight, open it up, pour the wine, go to separate corners, read the love letter & remember what it's all about.
DIY Kissing clothespin -- this could be used as a great visual for teaching on unity and oneness in marriage. if they ever separate, the clothespin is no longer useful for it's purpose. it is ruined and is no longer a whole clothespin.