What about getting your friend a copy of Love in the Time of Cholera by Gabriel García Márquez? This book is a timeless classic that your friend would likely appreciate, especially if they are already a fan of the author. You could also consider a gift of a personalized and beautifully designed bookend or bookmark with a quote from the author. Additionally, if the couple enjoys cooking, you could gift them a cookbook from the region where the book is set to inspire their culinary creativity.
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.