Hobby suggestions?

My co-worker's husband has tremmors so bad that he can hardly do anything anymore, and this is emotionally killing him because he's always been very self-sufficient. He does not have Parkinson's, but I figured you may have some ideas anyhow. He's always had the tremmors, they're just getting worse now that he's in his 50s; his tremmor disorder is genetic, because their son has it too. To make it all worse, he's a very private person, so would not do volunteer work or just seek someone out to shoot the breeze. His wife is his sole socialization, which is driving her crazy because he follows her around the house like a lost puppy for everything she does. His tremmors are so bad, she has to spoon feed him, and it can take a half hour for him to sign his name. Unfortunately, he's now out of work and no one will hire him because of the tremmors, so he's home alone and can't do anything to occupy his time.

Do any of you have suggestions on things he CAN do to keep himself occupied, to help give him a sense of fulfillment and achievement? He NEEDS a hobby or two big time. He's lonely and depressed because he can't do anything.