Pregnancy is, perhaps, the only time in your life that it is socially acceptable to approach a woman, rub her belly and comment on the increasing size of her waist. So why do not you have fun? Surround the ball of yarn and scissors. Tell each guest to cut the length of the rope, which, in his opinion, corresponds to the size of the Lord’s belly (make sure no one cheats, measuring his or her waist!). When everyone has a piece of rope, invite each person to try their luck, measuring the mother’s belly. Whoever has the closest line to the ideal dimension wins.