I think blacksmith is the best option, but I'm not totally convinced as (in my experience) blacksmiths don't go much for aluminum - they prefer iron and steel.
Tractors usually contain some aluminum, of course - even the older ones that were mostly cast iron and steel usually had some aluminum parts.
I've seen some food scare reports that say, "Sushi is bad for you because it contains dangerously high levels of aluminum", but I don't think that is a widely-known story and it may not even be true, as far as I know.
I thought we could wait and see what Kael thinks - assuming he's likely to be around in the near future.
The game normally gets slow over the weekend anyhow.
