1 Coin Bubble is an easy difficulty stamp in Club Penguin, only available to be obtained by members. In order to obtain this stamp, you must find one coin bag in the sea levels of Puffle Rescue. The coin bag is floating around in a bubble around the eastern side of level 7. You must use a fan to land on it. After popping the bubble, the coin bag will automatically be obtained.
This stamp was released on August 30th, 2010, along with the other Puffle Rescue stamps.