How about a personalized Celtic knot necklace? You could have his name or initials engraved on it as well. Another gift idea could be a book on Celtic mythology or history, or a set of handcrafted Celtic coasters or pottery. If he enjoys music, you could also consider giving him a CD of traditional Celtic music or tickets to see a live Celtic music performance.
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.