How about a well-designed and sturdy coffee maker for your boyfriend's anniversary gift? A brand like Chemex has a glass coffee maker with a wooden collar and tie, which would be a great addition to his brewing collection. You could also add in some unique coffee beans from different parts of the world to help him experiment with new flavors. You could also consider purchasing a subscription that delivers coffee beans to your boyfriend's doorstep every month. That way, he can enjoy different kinds of coffee throughout the year.
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.