One idea could be to find an antique or vintage item that relates to a shared interest or memory. For example, if you both enjoy traveling, you could find a vintage travel poster from a place you've visited together. Or, if you have a favorite movie or musician, you could find an antique or vintage item related to them (such as an old vinyl record or movie poster). Another idea could be to book a weekend getaway to a historic town or city known for its antique shops and markets, where you could browse together and possibly find a special piece to add to his collection.
Or you can get him a star map with the date of your anniversary.
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.