Baby Bottle/pacifier game. Can't say baby. If you catch someone saying it, you get their necklace. Person with most wins.
Bottle Chugging!! Give each guest a baby bottle and fill it with milk, juice, water, etc. Have everyone line up, and shout "Go!" The players have to drink the liquid as quickly as they can – through the nipple. (No unscrewing the top allowed!) Whoever finishes first is the winner. This game is especially entertaining if you're throwing a co-ed shower.