What do you think i should do...?

I am dating a truly amazing guy who does so much for me, i want to do something special for him for his birthday which is in april. The only thing is he is the kind of guy who isn't into store bought gifts. He loves the outdoors, is a wonderfully talented artist and listens to all sorts of music...Im just curious as to what would be good gift for him. Im artisic in the music department but making things are a little more difficult for me. All suggestions are welcome just please so rude or sarcastic comments. We are only fifteen so keep that in mind please.