How about a comic book writing notebook that she can use to jot down her ideas and sketches? You can also pair it with a set of high-quality drawing pens/pencils for her to use when doodling out her comics. Another idea is to get her a subscription to a comic book or graphic novel delivery service, which will introduce her to new writers and artists in the field. Finally, you could look into booking a writing workshop or seminar on comic book writing for her to attend, which would allow her to learn from and connect with other people who share her interests.
Or you can get her a star map with the date when she was born.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.