If you can find titanium rod in a useful thickness, titanium stakes are an easy project. As Jay Hamm says, 'all you need is a dremmel tool and muscle.'
The problem is finding the right gauge. BPL's tit rod (1/16") is too small and the 1/8" rod from from Online Metals is too thick. What you need is about 3/32" or about 0.0935 - which is about coat-hanger size. If you find any that size, let me know.
BTW, coathangers make superior tent stakes if bent into a 'U' with unequal legs. I make them with 7" and 5" legs and they weigh the same as my 9" titanium stakes. The 'U' stakes have more useful length than the usual titanium 'crooked-neck' design, and they have more holding power in questionable soil. They are still easy to insert by hand. Titanium is both stiffer and lighter than the cheap, low carbon steel of coat hangers, and would be ideal for 'U' stakes in the right gauge.
I have tried using BPL's 1/16" rod for 'U' stakes, and find it to be right at the ragged edge of practicality. Too thin. I have gone back to the coathanger stakes.