How about a personalized Aztec calendar? This could be a great gift idea for your grandpa who loves Aztec culture. You can have a calendar created with his name and his birth date in the Aztec style. Additionally, you could consider getting him a book on the history and culture of the Aztecs or a DVD featuring Aztec civilization to further help him understand and appreciate this fascinating culture. If your budget allows, consider gifting him a personalized Aztec art or a handmade Aztec-inspired piece of jewelry or a pottery item.
Or you can get him a star map with the date when he 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.