Hard boil enough eggs to give each guest one when they arrive. Let them know this is their egg baby and they can care for it throughout the party, they may have it babysat by another guest for a while, and they need to name it. You can have a craft area where they can decorate their baby or pass out supplies to do this. Have them draw a baby face on it and write the name they came up with for baby egg on the back. You can display them for mom-to-be so she can choose her favorite and hold it up for all to see and read the back to announce the baby eggs name to be the winner. At the end of the shower you can give prizes to all those who took good care of their baby egg – if there is one little crack they don’t get a prize.