Club Penguin has now introduced "Game Cards". They are like Membership Gift Cards but you can buy them only a Target, not the internet. You can get them for 1 Month of Membership or 6 Months.
You can go to it by going to http://www.clubpenguin.com/ then Click on "Game Cards" Tab.
You can also view the page for Game Cards by clicking the Picture Below:
I think this is a cool new thing that Club Penguin made! Do you?
-Cena12121, T.C.P.C. President