set the radial on the VOR and draw a line from it
Well, if that's what you want to do, I'd get one of these
Navigation Equipment | Plotters | NRN010 | RNP-1
Although I prefer the AFE version myself. It has a hole in the centre of the VOR plotting circle, so I made a tiny hole in the centre of the VORs I was planning to plot from, broke up a paper clip and taped it behind so just a tiny bit was sticking through. This meant the plotting device would slot nicely onto the VOR and rotate freely, allowing a quick and accurate plot.
It is also then a full protractor, and scale rule as well.