The Hearthstone is a unique World of Warcraft item that teleports you back to your home base - either an inn or location that you've set.
World of Warcraft - Hearthstone Papercraft
Legend of Zelda - Howling Stone Papercraft [Related Posts]
Pokemon Onix Papercraft
Thwomp Papercraft
Eyerok Papercraft
Chinatown Wars - Guardian Lion Papercraft