I started a little Make It Up Pinterest board with a few ideas, you could:
Make up a seasonal story
You could be inspired by nature and craft your story from items you find on a nature walk
You could make your own puppets and put on a puppet show, or shadow puppet show...
This is one of Violet's favorite things to do. She wrote this one at school (thanks to her teacher for taking time out to help her write it down). In fact, I often over hear her telling a story to herself as she is drawing a picture and then telling me the story when she is all finished.
I hope you find these helpful and inspirational. And, most of all, I hope you are having fun!
Have a great rest of your weekend!