Look at things made from steel as that is an iron alloy. Anything ferrous really but the only metal I can think of that's an iron alloy off of the top of my head is steel.
If you're near a multicultural town or city then have a look in some shops catering for Sikhs because a few Sikhs use only iron utensils and cookware etc. so you might be able to find some gorgeous kitchen bits and bobs that are really unique. You may also be able find stuff like this online.
On posh homeware sites you can find seriously cool iron lamps and iron chairs amongst other things, but it depends how much you want to spend as these can be expensive. If money isn't an issue try Graham and Green, Cox and Cox, Ben Penreath, Nkuku....
Iron is definitely a tough one!