How about a personalized Kendo Practitioner's Certificate? You can have his name on it, and it can be framed and displayed in his room. You can also get him a new set of Kendo gear or some high-quality Kendo training equipment. Another idea is to get him some books on Kendo techniques, history, and philosophy so he can continue to deepen his knowledge and passion for the martial art. Alternatively, if he is interested in Japanese culture, you can get him a Japanese tea set or a book on Japanese cuisine.
Or you can get him a star map with an important date you share.
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.