I use a karate belt. I adjust the loop for size with a square knot (so the KB doesn't drag on the floor), loop through the kb handle then hang it on my waist. Works fine with my 24Kg, and even the 24 and 8 together. For the 8kg alone I just hang the belt on my neck, easier than stepping through the belt and adjusting it. Free, but I've got a whole box of karate belts. I have a doorway pull-up bar in my office and minimal equipment. Never tried to make it work with plates or anything heavier than 70 lbs.