Is of Writing: Inspirational Writing Prompt
Just like J.K. Rowling and Dr. Seuss, invent plants, animals, and creatures such as a Womping Willow or a Zizzer Zazzer Zuzz.
Brainstorm plants and animals for a realistic ABC book.
Create new creatures for a fantasy ABC book.
Create a “bible”, a resource listing all of the plants, animals and names of places in your novel.
Try world-building. (Tolkien invented another language, but you do not need to be so elaborate.)
Five Foundations of World Building (malindalo.com)
Fantastic Beasts and Where to Find Them by Newt Scamander (penned by J.K. Rowling)
World Building for Fantasy & SciFi Writers (awrighton.com)