There's a project for someone who can pump some iron (probably cap). A cast iron tea pot.
Of course iron has a problem with rusting, so this wouldn't work too well unless you can figure a way to enamel the inside (as my teapot and cups are), or blacken the iron in some way that prevents rusting, or maybe smelt down the iron with wood containing an extremely high phosphorus content to create a sort of rust-proof iron by generating compounds in the structure of the iron that would adhere to the surface of any developing rust and neutralize the parasitic spread of red rust compounds...
... not that anybody has that sort of technology. Metallurgy like that is a tiny bit more advanced than current state-of-the-art, around the same level as hematite enameling (i.e. converting the surface of the iron to dense, polished Fe2O3 enameling, difficult because deep conversion is extremely difficult and the easy way to do this is by forming rust--which becomes open-cell grainy--and then heating it to 200C. You can't melt the hematite on either, because it liquefies at 1838K whereas iron melts at 1811K; processing this would involve mixing in a little tungsten into the base iron, which melts at 3695K, which is probably outside the range of your home smelting setup and besides... then you can't form a pure hematite enameling).
But I bet any blacksmith worth his salt could make a worthwhile iron teapot anyway.
Me? I just bought one. They're nice.