I took 4″ sections of 4″ PVC, drilled 4, 1/4″ holes near the bottom at 12 o’clock, 3,6, & 9….put 550 cord thru them to create an x….then duck taped a small wood clamp to it. Fits a coozy perfect and can clamp onto gunwale, yoke, wherever you want to put them! This was over ten years ago and they still work great! I shoulda patented them! 🙂