One idea could be to gift your friend a set of handmade Slavic dolls, painted with intricate traditional designs. These dolls represent family, fertility, and prosperity and are often given as a symbolic gift on special occasions in Slavic culture. Another idea could be to gift them a cookbook featuring Slavic cuisine, such as "Mamushka: Recipes from Ukraine and Beyond" by Olia Hercules, which includes both classic and contemporary dishes from the region. Lastly, you could consider gifting them a traditional Slavic embroidery kit, which would allow them to create their own unique work of art inspired by their love of Slavic culture.
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.