I scanned a page from the board book and traced Mouse and Minka. I used clipart for inspiration for the leaves.
This particular set isn't for sale, but please check out my shop with many of my other sets:
The picture below shows how I store most of my flannel board stories: a zip lock bag, the words to the story, and a labeled piece of card stock cut down to fit in the bag. Sometimes if there aren't a lot of words, I just write them out onto the card stock. Sometimes a story or felt set will have various ways to be used, so all the different songs/words/chants/etc. are printed out and stored in the bag too.