Waugh!!
I just got back from the woods where I used titanium “U” tent stakes that weigh about 0.1 oz. (2.5 grams) each. Through a rainstorm. They were ‘U’ stakes out of BPL’s titanium rod. If you haven’t used all yours up making Z stands, try them for tent stakes.
BPL’s rod is REAL thin, but the stakes push into the ground where larger diameter stakes would have to be pounded. Each one was 12″ rod, bent with a 7″ long leg and a shorter leg with a 3/4 inch flat top. U stakes seem to hold better than conventional single-leg stakes. These replaced steel U stakes of the same size which weighed 0.25 oz. each.