he could port to his home there are some marks for sure ans also kunai with marks
I wonder where he used to hide all those kunai anyways? lolyeah but you got to look at it from kishimoto's point of view. remember how sauske has itachi's eyes right? but guess what, when he get's edo tensei, he has them back from out of nowhere! so I'm positive that he'll have like a million in his back pocket.
He was revived with edo tensei what's the chances he has his special kunai with him Lol
Lets see...
Kishi : IMma defy all logic and just give him a infinite amount anyway XD
Fail, he already used it zapping himself and the 3rd to their carved heads in the mountain. Also he would have his weapons, every other edo shinobi has theirs, kin and gin had theirs etc.