Google Baby Shower Games and you'll find heaps!

At mine, one of the games was to get each guest to cut a piece of string or wool to the length of what they thought my tummy was if it was wrapped around it (IYKWIM?). The person with the piece closest to my size won.

Another funny one is to give everyone a paper plate and get them to put in on their head while trying to draw a picture of the baby.

I'm sure you'll get some great tips on BB