What is the name of mouth and eyes painted on the nose cone of some fighter planes?

[Joeyjoejoejnr Shabado]

Heres a link with a picture
http://cache3.asset-cache.net/xc/50433822.jpg?v=1&c=IWSAsset&k=2&d=E41C9FE5C4AA0A144A1DF516F39ED159BDA902810390483565157BA830A0DC71B01E70F2B3269972