Quote Originally Posted by lelouch View Post
I'm sure he could acquire them from master Graverobber Kabuto.
That's assuming there's anything left to BE obtained.

There's also only so much material to go around. It's possible Kabuto only had the one sample and used it up already.

And who knows what Obito did with Rin's body. He might have burned it, not knowing about Edo Tensei at the time.