The rest of the post is a shameless copy and paste from my original thread.
I have tested the zip myself on LG stock and all seems to be OK - this works on the Google keyboard and the stock keyboard.
This will only work with KitKat roms. It will not work with Jellybean!
Thanks to @angelsel in creating an iPhone emoji font, I have made made a second zip for iPhone emoji's too!
MEGA download link - ANDROID STOCK EMOJI
MEGA download link - IPHONE EMOJI
APK Download @bender_007 has very kindly made an APK for this for the guys who don't have a custom recovery! This includes the Android and iPhone emojis. Enjoy!
I hope this is useful for someone as I hated the LG Emojis!