Step One
Get a length of wire and wrap it around the 1/16" rod with one short and one long end. Use
a pair of pliers to twist it until it is reasonably tight (you still want to be able to slide
the wire easily up and and down the rod).
Trim any excess wire from the short end. Next paint the stem red or orange to stop any metal showing through (but not too thickly otherwise it will not slide over the
pin on your aircraft). Painting the stem is optional as its unlikely you will see it and the paint will probably chip off quite quickly.