How about gifting him a piece of Aztec-inspired artwork or decor? You could search for an Aztec-themed tapestry, throw pillow, or framed print to display in his home. Alternatively, you could consider getting him an Aztec calendar stone replica, an Aztec-style chess set, or an Aztec headdress replica to display as a conversation piece. If he likes reading, you could surprise him with an Aztec literature book, such as a translation of the original Florentine Codex, which is the most extensive source available about Aztec life and culture. Hope this helps!
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.