What would make a good Christmas present for my adviser?

I’m looking for something that will be of use or pleasure to him, but that also won’t embarrass him because he makes easily 5 times as much money as I do. Married middle/upper-middle class guy, his kids are in college, nice house and a dog.

Last year I gave him a book about progressive politics that really inspired me in college. It was a good fit, but I really don’t want to give him another book this year. Giving academics in the humanities books for pleasure reading is kind of a cruel joke.

I’d really like to give him something meaningful this year, because he has gone far above and beyond to help me out in my most difficult year of grad school. He is widely recognized as one of the best advisers in the department.

Thank you for any ideas!