How about a vinyl record of Nirvana's "Nevermind" album? You could even pair it with a record player if she doesn't have one already. Another option could be Nirvana merchandise, such as a t-shirt or hoodie with the band's logo on it. You could also consider getting her a book or documentary about the band's history and impact on music.
Or you can get her a star map with the date when she gave birth to you.
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.