Shipping pad on the ground using your knees on one side of the tire to push the bead down into the groove of the rim. A stand? You guys need to get a hold of CDA.
Ive used an old 20 along metal trash can for years. It's what I keep all old rags in before the get so saturated and go to trash. Drape the bigger (towels) over the edges for softness, use my thighs for leverage and that is it. Breaking bead is easy, cold days suck! No bending over and working on ground or 5gl bucket. I'm only 5'7".