Was a great game at my shower but I used mini m&ms and it was a little more challenging. Pain in the rear to count out the m&ms (894 total) but everyone loved it so I would suggest it at any shower. When they are passing the bottle around to guess is a great time for people to introduce themselves.
Whether you're planning a daring couple's shower or a tame for-all-ages party, this game is always a hilarious hit. Fill baby bottles with the beverage of your choice-beer for the guys at a grown-ups' party and apple juice for the kids at a family baby shower. Then, give everyone a bottle and on the count of three they must suck the bottles dry as quickly as possible. The first person to down the contents of his or her bottle wins.