I'm sure it worked fine for the filming of the movie since the saber was only shown from a distance. But for display purposes, I needed something better. To achieve total accuracy and display quality results I've come up with a custom rubber extrusion made from the same hard rubber material as the original grips. The grip material is exactly like the military wiper blades except that the part of the material that contacts the Graflex is curved to match the curve of the handle. No expense was spared in achieving total professionalism in this design and I believe it to be the finest quality on the market today.
Some folks just bend some metal strip and drill a couple of holes in it.
While this method is functional, the results are usually lacking in display quality appearance. I've modeled my belt clip after the version made by Icons. They had the chance to borrow the actual prop in order to replicate it. So, given the absolute accuracy of the rest of their saber, I don't doubt that what they made is a dead on copy. Just like my rubber grip material described above, no expense was spared in the design and construction my belt clips.