You mentioned hobbies-—what kind of hobbies does he enjoy? Also home—could you be more specific, like Interior Decorating, DYI projects, etc?
I'm thinking things that he can do at the table or chair because walking is difficult right now. So small woodcraft, electronic kits, things for the house to make things easier, easy to care for plants he could tend in the yard, mechanical or accessories for the car. Things like that