One idea could be to gift them a high-quality DIY electronics kit or a subscription to a DIY electronics monthly box. It could help them expand their knowledge and create even more intricate projects. Another idea is to gift them a gift card to a local electronic supply store, which would allow them to purchase any parts or tools they may need for future projects. Additionally, you could find a personalized circuit board that is relevant to their interests or their upcoming wedding and have it printed as a keepsake item.
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.