Buy a ball of yarn or string before the shower. Pass the ball of yarn to each guest and let them cut off the amount that they think best represents the waistline of the mother-to-be. After each guest has their string, have the mother to be go around the room and try out each string by wrapping it around her waist. The one that comes closest to her actual size wins. This may have to be a judgment call by the mother-to-be. This game is always a lot of fun even if a guest has played before. A new mommy-to-be makes the game a whole new guess!

There are some mothers-to-be who might be uncomfortable having their tummies measured. Always take their feelings into account when planning.