Take either a photo of yourself or pick one of your friends on Facebook, add some Mustache flair and share it.
Chop and change Mustaches, add a Beard or even some Wayfarers.
This app incorporated Advanced Facial Detection, which makes it a lot easier to modify photos and get Moustache placement exactly right. Just load up a photo and the app will automatically place a Moustache on the upper lip. Youre then free to change the stache, tweak it or add hundreds of different stickers.