the ring of 9 lives comes to mind.
I once played a 3.5 ninja and got the wizard of the party to make a small wooden doll that was an expendable item that cost 1/9th the cost of the ring of 9 lives (then put the restriction only useable by ninja so 1/3 again) that when i died instead it was a log dressed like me... and he made me like a dozen or so of them....