Board Thread:Theories and Speculation/@comment-1512913-20150827121154/@comment-3965545-20150828133149

You're welcome. I was messing around and gave Sasuke the dual Rinnegan, Sai the Sharingan, Orochimaru the Sharingan etc. I don't think the original eyes get thrown away, just stored away. Most likely Sasuke went back to mountains graveyard and took all the spare sharingan, plus his originals.. their all probably in a secret lab in Konoha.. or stored underground in the room with the Uchiha tablet.