Smile

The Smile is a pleased, kind, or amused facial expression, typically with the corners of the mouth turned up and the front teeth exposed.

Behavior
This object can be worn like a mask. Dogs will eat, since this object is considered a bone. In Scribblenauts Unmasked when someone is attacked by the Joker Venom a smile will spawn on their faces.

Trivia

 * In Scribblenauts and Super Scribblenauts typing Smile creates a Teeth  instead.