How about a personalized ham radio call sign signboard for their home? You could have it custom made with their call sign and wedding date. Another option would be a book on ham radio operation or a vintage ham radio piece for their collection. If they enjoy being outdoors, a portable ham radio kit could also be a great gift. Alternatively, you could sponsor their membership to a ham radio club or conference for a year.
Or you can get her/him a star map with the date of the wedding.
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.