All you need is 2.5 feet of 22 gauge copper or steel wire and for tools:
Soldering Iron (along with flux and solder)
Sandpaper or some type of file (an emery board would even work)
Drill (or Dremel Moto type tool) and small drill bit (1/16")
Very small (jewelers sized) Philips screwdriver
That and you need steady hands and know how to solder (I can't solder to save my soul).
Here's a link to see how it's done: