My guild (about 55-60 members at most meetings) publishes a list at the beginning of each year of "hostesses" designated for each month. There might be some trading or substitutions during the year, but the list is pretty much stable. The month you are a hostess, you coordinate with the rest of the group on food items and quantity. It's a breakfast buffet but there are always desserts too!
And each hostess brings a goodie bag (up to $10 value) for the door prize drawings. Members who join during the year don't have to be on a hostess team until the next calendar year. Officers and charter members are exempt. I was on the March hostess team and it was fun....except for getting there early.
There's lots of friendly competition over baked goods, etc. And some darn good food each time.