Mind Candy, the publisher behind the online sensation Moshi Monsters, has announced the launch of the Moshi Monsters MouthOff app, as developed by UK studio ustwo.

Supplying a choice of six Moshi Monsters, the app lets you hold your iPhone up to your face and replace your own mouth with that of the monster. The microphone then picks up your voice and animates the Moshi mouth on the screen.

The app is available in six languages, and is the first of several Moshi products hitting the market in time for Christmas.

Moshi Monsters MouthOff is available from the App Store for £1.79 / $2.99.