L.C.
Dear NW,
The first things that came to mind were a handmade hat to keep his head warm made out of baby yarn so that it is not real heavy and tight (that is, if his skull is not too sore to put anything on top of it).
The second thing I thought of was a grabber. I have seen them in White and White and also K-Mart, Walmart, or Target. It has a long handle and it grabs things that you cannot reach well. He could sit in his chair or lie down in his bed and pick things up more easily.
L. C.