You need some different things like: A scrapped co-axial cord, hexagonal styrene stock, thin solder, some fine gauge wire of some sort and then whatever tools and paint you prefer.

Start by drilling a deep hole the same size as the solder.

With a triangular file I make groove in the hex-rod.

Put the wire inside the scrapped cord so that it bends easily and holds the shape. It also prevent it from getting deformed.

Cut the rod in whatever length you need and enlarge the end that's going to have the cord glued in.

Here I glued in the cord and solder to the hex-rod, I also added a little slice to finish the hardware.

I use Modelmaster's Metalizer as it dries in an instant and I brush it on.

After the metalizer is dry it's time to get that anodized look. For that I use Tamiya acrylics. And this is what it looks like after some 20 minutes work including drying time for the paint.