I believe this was a Wayne Westerman design for a tie-down, but it's one that has worked well for me. Pound the long nails in at an angle and it should hold fast, similar to the "Claw" tie-down product.
I can't guarantee it'll work well in soft sand, but it has held tight in the soil in my slice of Alaska.
It's yours for the price of a USPS medium flat rate box.
Last edited by Mark; 07/28/2206:07 PM. Reason: Found a new home