Llama Heads Pack for Minecraft PE is modificatiom, which replaced some head blocks to Llama heads. It is great idea to have fun with your friends or just change something in your world. It is not big and important mod, but you can try to play with it.
Screenshots are here
Look at this Llama heads. They are everywhere. Just imagine how your world is change.
for Minecraft Pocket Edition 1.2 +