I use a Bohemian rod warmer. They are made from cast iron and you can preheat your rods and murrini on it.
I love it! Especially when I am making headpins and I have to change colors a lot. Really speeds things up.
However, it does require the torch to be tilted downwards or straight. I know most American lampworkers have their torch tilted upwards. I started this way when I was only doing lampwork for a few months, so it was an easy adjustment for me.