around a 3/4" steel rod. 4" of such a "pigtail" weighs almost nothing, requires no noise to get "seated" into the dirt, is adjustable for tension, (once it's "set") and holds a LOT better than any (feasible to carry) stake ever could.
I think it's the idea of taking a piece of 8 or 10 gauge aluminum wire and twisting/winding it into an corkscrew shape. Then screw that into the ground instead of using tent stakes.
Never tried it, but seems like "screwing" a home-made aluminum corkscrew into the ground would be problematic at best. But like I said, never tried it. In my emergency gear, for ground-stake use I carry 8-inch aluminum gutter nails. Weight pretty much nothing, but if used carefully can hold a surprising amount.
Could be wrong, and may be why I don't understand the "adjustable for tension" part.