How about a Japanese cooking kit? It could include traditional Japanese ingredients like miso paste, sake, and mirin, along with a cookbook with easy-to-follow Japanese recipes that he can try out in his own kitchen. You could also include a note suggesting a virtual cooking class or a local Japanese cooking class for him to attend so he can learn new techniques and expand his culinary skills. Pair it with a traditional Japanese sake cup or Japanese-style teapot for an extra touch.
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.