Gift Ideas for someone with 2005 X-Star that

always invited me out to shred with him?

So I just started wakeboarding a couple years ago and was fortunate to become friends with this really awesome guy that always invited me out on his kick ass boat. It's a 2005 X-Star and was wondering if you guys had any insight on some cool gift/ideas that would show my appreciation. And yeah, I always chip in for gas so don't just say money Thanks WW!