Simple Stanchions for Wire Shelves

I was tasked with fixing an unusual storage problem. Large rolls of fabric had been stacked up on a wire shelf that was much too small and not designed for this type of item. The rolls were nearly falling off the shelf, held back by a random length of ribbon that had been tied around them. Despite the poor solution this was the best place to keep them, so I came up with a simple wooden stanchion that could "slot into" the wire shelf and hold back the rolls of fabric. This way we had a better, cheap solution that was easy and not permanent.