I started this process because I had a bunch of this material left over from a job that we did. It was through many trail and errors that I finally have made some that I approve of. As you can see in the last picture I played around with idea of dipping the ends where the rods goes in with some plastic dip, and it turned out awesome.
Here is what I started with.
I am melting the tip.
I cut some heat shrink tubing to protect the melted ends.
Here are some of my finished products.