I'm always trying to find ways to count stitches. These beaded counters allow the beads to slide when you move them, but don't slip unless you want them to. I made them onto the same size jump rings I use for stitch markers.
I watched a youtube video for making a beaded golf counter. It was super easy and fun. For golf, it seems the big beads are best, but for knitting, I like the smaller ones.