Spinach is one that I can think of. You can check any food that you think might have iron at this website. It's a really cool website to check calories and nutrients of foods:
Some Nails, some cans, some refrigerators, stovetops, and cooking pans. All depends though. Tough to tell... New materials being used every day. More and more iron things are being replaced by other...
Iron has many uses being, the most common metal in today's society.
Making cars, trucks, and vans
Making steel
Making building supports
Making airplanes
Making Warships (Picture From...