You will need an ordinary metal coat hanger, a wick, a canning jar (these are heat treated and can withstand the hot temperature), and needle-nose pliers.
The wick shown in this photo is a typical kerosene lamp wick. Using a scissors, I cut the wick in half (length wise) so it wouldn’t be as fat as what is shown in the photo. You can use an ordinary candle wick.
TIP: A coat hanger is somewhat difficult to work and bend into a coil, while an easier approach is to use #12 gauge bare copper 'ground' wire, available at most hardware and 'big box' stores. It's softer and easier to work with.