Hello Kitty has no mouth, as it wants people to "project their feelings onto the character" and "be happy or sad together with Hello Kitty. Another explanation given for her lack of a mouth is that she "speaks from the heart. She isn't bound to any particular language". Hello Kitty is seen as a symbol of friendship, and this theme with our personalized decor will foster friendliness in the family and guests. Basic Kit is Available for Hello Kitty Theme.