How about a crypto-inspired piece of art? There are many artists who are creating beautiful and unique works of art that reflect the world of cryptocurrencies, such as canvas prints featuring various digital currency logos or crypto-inspired sculptures.
Another idea could be a physical bitcoin, which is essentially a collectible coin that has a private key embedded inside. These are often made from precious metals and can be used as a decoration or reminder of the importance of digital currencies.
A third idea could be a subscription to a cryptocurrency magazine or investment service, which would allow your friend to stay up-to-date with the latest news and market trends in the rapidly-evolving world of cryptocurrencies.
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.