Medium Plastic Babies -
"My Water Broke" Game

To play "My Water Broke", place one plastic baby inside a 6-oz. clear plastic cup.
 Fill each cup more than half way with water and place them in your freezer at
least 24 hours before your baby shower. (You can use ice cube trays and place frozen ice in cups too.)

The day of the shower, give everyone a cup with their baby frozen in the ice.
 At some point during the party, the ice will melt and their baby will become freed - thus, their "My water broke!"...
The first one whose water breaks is the winner