“Wrap Around” metal plant supports are available for sale, in various more or less “decorative” versions but they can quickly become costly if you need a lot. An easy method is explained in the BBC “Gardeners’ World” video below (click the button to view in a new tab).
Having no suitable tree at hand, I use another method using my old faithful Black & Decker Workmate® woodworking bench. Watch the sideshow below to find out how. Click on the right arrows on the right of the images to move forward through the slideshow.