Use fiskars scalloped scissors to do the top edge. Take a hole punch and make 3 holes on each side and lace up with ribbon for shoe laces. Hot glue the booties all around both layers of cake. Place one bag in each bootie when the guests leave. Let them each pull one bootie off the diaper cake.
Mom gets to keep the diapers when the favors are taken off.
Using the letters in Baby last name , list as many baby names as you can in 3 minutes to help Mom name her baby. The guest with the most names wins. With a ball of yarn, have each guest cut off the amount of yarn that they think will go around mom's belly. Each guest measures mom's belly with their yarn. The guest with the most accurate measurement wins.