I have a client that I have worked with for 5 years and I want to get him something for it. It is for my offline business and I do spend alot of time with him, 4 hours a week. I get along great with him and he always treats me well. However he is wealthy so he can buy whatever he wants. I want to get him something that he will appreciate/sentimental value. He is 65 years old and a business man if this helps.