One idea could be to create a personalized postcard book or album for her to store and display her postcard collection. You could also consider buying her a postcard book or holder that has sections for organization and display. Alternatively, you could put together a gift basket of postcards from different parts of the world, which can add to her collection and also allow her to see new and beautiful places. You could even add a handwritten note to one of the postcards to make it even more personal.
Or you can get her a star map with an important date you share.
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.