Try at a retrea. Pass paper cups half-filled with Bisquick during breakfast. Get everyone to mix some liquid with the Bisquick to form a dough (milk, orange juice, coffee, maple syrup, whatever). Get each person to place their lump of dough on a greased cookie sheet. Then the dough is pressed together lightly to form a loaf but not enough to mix the individual lumps together. After the dough is allowed to rise, bake the loaf. At the communion service, the loaf is broken and passed around. Perhaps you can discuss how communion symbolizes that we are all individuals but we become one “mixed up” loaf through Jesus Christ.