You can either divide the guests into teams or individual. Provide everyone with a pen and paper to write on. Now you can start the game by playing the first nursery rhyme music for 2 to 3 seconds. At the end of the game, give all the answers and whoever has the most correct answer wins. Each party member cuts off a piece of string guessing the length to fit around the Mother's middle.
Mom tries on each string.
The person with the closest length wins a prize. Some showers use toilet paper instead of string. Ribbon would work well, too. Balloon Carry Place two laundry baskets across the room from each other, one with about 10 party balloons. Divide guests into two teams.