How about a physical Bitcoin coin as a Christmas gift? You can find them online or at a specialty shop that sells Bitcoin merchandise. The coins are usually made of metal and have the Bitcoin logo on one side and a unique address on the other, making it a great collector's item for those who are interested in cryptocurrency. You can also consider purchasing a book on Bitcoin or enrolling her in an online course to enhance her knowledge and understanding of the topic.
Or you can get her a star map with an important date you share.
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.