How about getting him a book of poetry written by a famous poet that he adores along with a gift card to a local bookstore where he may be able to find information about upcoming live poetry readings in your area, and attend some poetry readings with you? You can even personalize the gift by getting tickets to see his favorite poet perform live, if there's one in your city, or even a poetry workshop. Additionally, you can get him a journal or a tablet to take down notes or write something after attending the poetry workshop or a poetry reading.
Or you can get him 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.