There are a lot of us who would love to receive Studio Ghibli cards, but not all of us have ones to send in order to participate in a tag. Just like with Moomin/something else tag, Hello Kitty/Something from wishlist tag, senders receive Studio Ghibli cards by fulfilling someone elses wish!
The first user sends a Studio Ghibli card, and posts their wishlist, make sure there are several categories (5 and more) so that people can tag you.
The second user fufills that wish, and receives a Studio Ghibli card from the third.
The third user sends a Studio Ghibli card, and posts their wishlist.
& so on.
The tag will go like this: Studio Ghibli -> Wishlist -> Studio Ghibli -> Wishlist -> Studio Ghibli etc…