Generally, you don't "make" an inductor like that, unless you have the appropriate equipment to measure and calibrate it. You buy it, at RadioShack, or Jameco, or DigiKey, or wherever you like to get your components. Good luck with your project!
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It didn't occur to me until I read this topic, but those options are only for Instructable Categories (not forum categories).
I fired off the appropriate message, with images... :-)
I see - somebody's dropped a clanger there.