Ordinary tent stakes slide right out of the dry lake bed, or playa, that people camp on at Burning Man. The time honored solution is rebar. It's cheap, easy to cut to size, and not too hard to hammer into the playa after a little practice.
But then there's pulling it back out of the ground.
You can't leave it. You can't cut it off. And gee, it appears to be a total bear to pull out of the ground...
You could hammer it sideways, bend, and twist it out, but then your rebar is all bent up and winds up left in storage, sad, unloved, while you wind up buying more because it's cheap.
You could try dumping water around it to loose the playa soil, but that 1) leaves a pit, 2) gets messy & old, fast, and 3) doesn't even work an better than bend & twist.
Fear not! A couple years back my campmate discovered a foolproof way to pull every piece of rebar you used around your camp in minutes. As in 10 seconds per stake. It's nuts!