For mine we did like a "guess how many" with colored beans in a baby bottle piggy bank. Or there were bags for each of the letters in "baby shower" with things baby - related with the corresponding letters and whoever guessed the most closest won. (For yellow, it was hard, so we used a yellow ducky or yellow pjs). Pinterest has a lot of good ideas, and you can always change the colors/theme as you like.
I'm doing the baby food game where u guess which one it is
And another where u melt chocolate in the diaper and guess what the chocolate is kinda gross but it's funny