The Rabbit's Christmas Party is a short story by Beatrix Potter. You can read it online here. It begins:
On a wet December day, the rabbits gathered for a Christmas party. Rabbits don't like rain, so they wore raincoats. One rabbit brought an umbrella. The room was decorated for Christmas with holly on the walls. When the rabbits sat down to eat, there were not enough chairs. So some rabbits sat on baskets.