OMGZZZZZZ! ! ! ! ! I know how to duplicate items without a program!
Duplicating:
1. Go to your inventory, drop your items you want to duplicate by clicking and dragging out of the inventory menu.
2. Save and quit to title.
3. Load back on your save, and pick up the items from the ground that you dropped earlier. Then you have about 2.9 seconds to close the Minecraft window. Log back on Minecraft and "volla"! Your Items are duplicated! You can duplicate as much as you wish too.
Warnings
1. Sometimes, it may not work, and you'll have to do it again! This is because duplicating is a glitch, glitching is confusing the device.
2. I think you have to do it with a roof over your head (Your house). I'm not sure... I tried it out of my cave house and it didn't work.
I know a Mob Spawner seed! It's called, "theworstseedever". Look around, there will be a big rectangular hole in the sand, and there will be a zombie spawner under a block of sand in the middle of the hole.
Duplicating: Get 2 or more scrolls, click the scroll 5 times, go to the item you want to duplicate, then drop it.
WARNINGS: (Can not duplicate armor and weapons) (Each scroll you have is how much of the duplicated item you'll get) (Scroll number must be higher then duplicated item in order to duplicate).
As a zombie, you're really hungry for some flesh, so you download a "Human mod" and start to eat, but then there's a tribe of Zombie haterzz that want to kill you.