One idea might be to consider getting your friend a nice set of high-quality drawing materials, like professional-grade colored pencils or charcoals. You could also get them a sketchbook or a set of drawing instructional books that they could use to hone their craft. Additionally, you could look into finding a local art class or workshop that they might be interested in attending, or perhaps a gift card to an art supply store so they can choose their own supplies. Finally, you might consider commissioning a custom piece of art for them as a wedding gift - this could be a portrait of the happy couple, or a scene from a place that holds special meaning to them.
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.