Christmas shopping

Dani • I'm so much cooler online.
What do you get a 15 year old boy for Christmas?
:/
My boyfriend is a sophomore in high school. He's a musician, just like me. We both play the saxophone. I considered getting him a song book for saxophones but I'm not sure. He's very talented so I can't get him a book with pop tunes- they're way too easy for him. He's get bored. I'd like to get him one of those teacher books with all the really challenging etudes but idk where to find one.
He also likes to run and I wanted to get him a nice pair of adidas running shoes but he said not to buy him shows because he has wide feet and always has trouble shoe shopping.
Last Christmas I bought him a beautiful watch, and he loved it. But i feel like he's a bit young to really appreciate things like that. Y'know?
He doesn't really read so I can't get him a book.
He likes Starbucks coffee so I guess I could get him a Starbucks gift card but that's too small and if I did that I'd get him something else too.
Please leave some gift ideas???