At a recent baby shower, we had several games two of the hostesses put together. This was a guessing game. Because the gender of the baby wasn't known, it was fun to have a blue and pink guessing game. Guests wrote down how many items were in the jar. It included "pink" rattles and pins, "blue rattles and pins, and Q-Tips.
Another fun game (and so sorry I missed getting a picture!) was covering the mother-to-be's eyes and having her put a diaper on the baby doll. She did a great job!
Other games were found at YeahBaby.com. Shower games are so much fun!