Moss Key Pin

The  was a Pin in Club Penguin Online. It could be obtained by entering in the Underwater room.

Trivia

 * It was Club Penguin Online's  3rd pin.
 * It was the 1st and last pin to be hidden at the Underwater.

Finding the pin
The only way to find this pin was to be in the Underwater. However, it was impossible to get into this room without the pin unless the penguin played the game Puffle Rescue.
 * In the game, the penguin had to play the first Black Puffle Level of Puffle Rescue.
 * After saving the black puffle, the Giant Squid would appear and swim out to sea, leaving a trail of bubbles behind it.
 * The penguin had to use those bubbles to chase the giant squid to a coral reef far out to sea, where there would be a staircase which led into the Underwater room, where the Penguin could get the Moss Key Pin.