Hi hows it going ? where did you get your wire. You can get coated wire from many resources,old tv's, monitors, transformers, I'm sure there are many more............To coat your own wire would not be worth the cause, better to spend your time designing. Everything costs money ,when you have to buy it or make it . Look at it like this,......scrap wire , scrap magnets,put it on an old wheel , spin it , and make some electricitry......sounds free to me......artv