If you want to get new armor or a powerful sword in the game Minecraft PE 0.12.1 and 0.11.1 and then mod ModbyGraf
will give you the opportunity. With it, you can craft new things. The same mod will add a lot of new food, ore, dust and blocks. With this modification you can create a very strong sword that will kill mobs in one hit and it is very useful to you in battle.
While this is the first and debut version of the mod for Pocket Edition in a short time the author has promised to release an update, which will be even more craft and other changes that will delight you.