How do you clone

It only works as part of a co-op. You need at least 3 people playing at the same time.

Person 1 posts the item you want to clone on the farm orders stand and marks it co-op only
All other players go to the co-op for sale board and look for the item but DON'T buy
Go into chat and say "see" when you have seen this.
At this point you must NOT leave the chat/sale screens and do not refresh!
Wait for everyone to say "see"
Then you all buy it - it only changes to sold if you press refresh or leave the co-op window to go back to farm
Next player then lists, everyone repeats adobe including player 1 who listed before.
At the end of that post, player 3 posts.
If you only have 3 players, at the end of the first round, from just 1 item to start, all 3 players will have 1 each and the starting player will also have their original item. 1 becomes 4!
Keep going in full rounds (or people lose out) until you have what you need for everyone
Tip: post as many as the post allows to make it faster
Tip: for every player additional to the 3 you need you will end up with an extra post's worth (so if post has 3 items and 5 players, at end of round 1 you will all have 9 items plus the starting posters original 3)!

You can no longer self clone if you have done the recent update zynga figured it out and have put a stop to the self cloning. How it was done you would go into the settings add a guest name so either put brackets on your name Oradea a new name. Somebody in your coop would put the item up for sale exclusively for coop you would then go into your settings and toggle your guest name on then jump into the store buy the item then go out of the store then go back in and the items are still there You can do this until you have enough of the item this is why so many people can finish events so quickly but unfortunately if you have done the recent update it will not work