Upcycling is good and in my experience the easiest way to generating a cosmetically appealing object if this is important. A case in point in your case is the footpeg used as an arm rest, which looks great, compared to the nut and bolt arrangement suspending the arm that looks...erm...functional. If I were you and I wanted to tart up this arm, and I would, because it's a great piece of engineering, I'd make some measurements and a sketch and, when all this virus aggro is resolved, have a trawl of the housewares section of your local large supermarket, Ikea and the like. I'll put money on there being a gloop pot of the right size that currently thinks it's a candle holder or a ramekin dish. Likewise your arm hanger may be a pen holder, length of copper pipe, or similar object. My Garrard plinth is 2 Ikea chopping boards, a drawer front, a hoover pipe and some threaded bar and brass. It stands on 3 Aldi door stops. Total cost under £100 and because most of it is from manufactured items my own ineptitude with hand tools doesn't show up too much.