No
the green shoes
The viking helmet is one hidden item that is hidden every month in the catalog.
When the Christmas party comes around in Clubpenguin look in the catalog and sometimes they are hidden items.REMINDER: you have to be a member to buy the item(s).
The mask is a rare item. It was hidden i the Halloween catalog. Every Halloween it comes out again. My advice is around Halloween catalog lookup on youtube: hidden items in the October catalog club penguin.
There isn't one item theres loads hidden in it
The hidden pin. Infact, its hidden every fortnight in a new place.
scarf
Its a: big white scarf... On the page with the trees in the back...
the viking helmet
red viking helmet
It isn't in the catalogue any more but it was a hidden item when you clicked on the yellow summer dress .
There are blue and red viking hats.