How about a Pink vinyl record album of his favorite Pink album. If he doesn't already have a record player, you could include a portable turntable as well. Another option could be getting him concert tickets to see Pink live, or a Pink t-shirt, poster, or hoodie. If he is a musician or loves to play music, you could get him a Pink songbook or sheet music of his favorite Pink songs so he can play them on his guitar, piano or keyboard.
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.