Have two volunteers come together and bind them together. Ask them to go to the wordstrip or picture in the room when you ask different questions. Who's your favorite singer? What religion will you observe? How many children do you want to have? What is your favorite thing to do in your spare time? etc.
Of course, there will be times when they will pulling on each other to get to their favorite. They may figure to go to one and get it and then go to the other. Compromise in a marriage is needed and works for many things. Yet when you choose between what religion, or what standards you may hold, those should not be compromised. Attach a couple of other class members to them as well, to serve as children and see what happens to them as the two struggle.