So after seeing some other ideas here I finally set up my ballast box to make it easier for when I am in the woods. I emptied all the rocks I had in there which were larger rock. They were plenty heavy but if I put a chain in there or other tools they tended to fall into the rocks and get wedged in. Once empty I made a scabbard for my chainsaw out of wood and attached. Then I put in 3 PVC pipes for my hatchet, axe and splitting mall. Then I started filling with large rocks, pea rock and river rock to fill in all the little spaces. Once I got near the top I had a tool box that I mounted to a piece of plywood that was larger than the tool box. This way as I filled the rest of the rock in it anchored the tool box. I left enough room at the top for chains and other small items. Not in the pictures but I leave one of the handles up on the iMatch hitch and hang my Stihl helmet on it.