Need help regarding a gift for my(18M) girlfriend (18F).

Hello! Me and my girlfriend both liked each other for the entirety of our senior year, and we finally started dating at the very beginning of summer after graduation. It was the best summer of both of our lives but we both knew that I would be moving to San Francisco and she would be moving to Rhode Island for college in the fall.

We decided to keep to continue dating, and its been awesome so far. We skype three times a week, snapchat 24/7, and have been sending each other packages across the country.

Anyways, I'm planning on sending her a package filled with tourist-y san francisco souvenirs and the first thing I bought was two keychains, one engraved with my name and the other engraved with her name from a giftshop in chinatown. Should I send her the keychain with my name on it and keep the one with hers or vice versa? Which is most romantic?

TLDR: I have two San Francisco themed keychains, on with my SO's name and the other with mine. Which one should I send to her in RI and which one should I keep?