I recommend getting him a professional drawing set that includes high-quality pencils, erasers, blending tools, and a sketch pad. If he likes to draw specific things, such as landscapes or portraits, you can also get him a book that specializes in that subject matter. Additionally, you could look into purchasing him a drawing tablet, which will allow him to draw digitally and experiment with different techniques. If he's into the classic, traditional style of drawing, you could also consider printing one of his drawings onto a canvas or other medium for him to display in his workspace or around the house.
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.