Here's an idea: You could create a poetry anthology based on his favorite poets or poems. Collect a book of love poems by famous poets like Shakespeare, Rumi, or Neruda and add personal favorites of yours. You can also look for poems written by lesser-known poets. You can write a handwritten inscription on the front page of the book to add a personal touch. Additionally, you could consider gifting him a poetry book by his favorite poet, or attending a poetry reading together as a special outing.
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.