E.V.
I just threw a good friend of mine a shower...I HATE shower games, I know I'm a fuddy duddy, but I just don't like them. Instead, we laid out a bunch of onesies and fabric pens and stencils around the table so each guest could decorate a onesie - which was awesome for the little girls that were there, they had fun too! Depending on the theme of the shower, you could hang a clothesline across the room and hang each onesie on there, too, as well as any clothes she gets for the shower. We also did an advice key ring...each guest wrote advice on a card. If you are more crafty, something I considered (which was done at my shower) was to have several scrap book pages laying around with scrapbooking supplies for people to decorate. This way the mom has pre-designed scrap book pages that she just has to add the pictures to.
To please everyone with the gift thing, we set a timer and whoever's gift the mom to be was opening when the timer came off got a prize.
We did do the belly measure game, it's just funny to see how small or big some people think she is.