Minecraft 100% duplication method [Get rich quick on minecraft servers!]

Hello everybody, I would like to sell a little secret i've kept for a while, It will allow you to dupe ALL valuable blocks, (Coal, Diamond, Emerald, Gold, Iron, some mod items?)
Message me on skype @OncePhoenix
Looking for 10$? Can I get a 10$?
Will give vouch copies to trusted MPGH peoples, Currently only going to give 3 VCs
=================== UPDATE ================================================== ======================
Does not work on some servers, works on others with the same plugins
fuck me.
no idea why

OP sold me a copy.
Method did not work on the server that I was buying it for, however he did screen share on Skype with me and the method does work on other servers.
If you play on a bunch of servers, and looking for a quick way to get rich on a few of them, I would definitely recommend this.