What should I get for my birthday?

My mom asked me what I want for my birthday, but I have no clue. I really love music, but I'm terrible with concerts because I'm usually busy the day they happen. I love records, which I use constantly on my record player, but I feel like my mom won't know what kind of bands I want and we all know that record stores always have unpredictable artists that you may like more. I'm a fan of art but I paint so much myself that getting more art isn't a great Idea, it just sounds like clutter to me. I also enjoy tennis, traveling, literature. By the way I'm turning fifteen. So, ideas or events that a fifteen year old could persue on their own or with friends.