Hi, I decided to do a little weekend project and build an electromagnet. I read online to use copper wire and wrap it around an iron core. I was wondering If I could use anything other than iron, also, I hope you guys can tell me where I can commonly find the parts necessary for this project? Thanks, I hope you guys can help. P.S. I know how to make an electromagnet, just wondering what materials to use and where I can find them commonly. I have a small model but it's extremely weak due to the thick insulation on the wire.