The neatest hack on the iPhone ... and the recipient iPhone doesn't need to have emoji icons switched on to see them!
1. Go to the App Store and download "Spell Number"
2. Open the Spell Number and enter the number "91929394.59"
3. Close Spell Number
4. Go to Settings > General > Keyboard > International Keyboards > Japanese
5. Turn Emoji on
6. That's it :)
