If you have ever gone looking for the secret hidden items in each month's clothing catalog, called Penguin Style, then you probably know about the viking helmets in Club Penguin. The most common one is the red viking helmet, which is always hidden in the catalog but many Club Penguin players know that there are two more viking helmets to be found. The secre blue viking helmet and the extremely rare Gold Viking Helmet. 

The blue viking helmet is easy to find once you have found the red viking helmet. It is always in the same place. Just click on the red viking helmet to close it and then repeat the process of opening and closing it three more times. On the fourth time, it will become the blue viking helmet.