The first modular origami model comes from a 1734 Japanese book by Hayato Ohoka called "Ranma Zushiki". The book has pictures of many traditional origami models, and one is a modular cube called "tamatebako". "Tamatebako" is a Japanese word meaning "magic treasure box", and it is called this because the box can be opened on any side. Another traditional model, kusudamas, are balls of folded paper flowers. They are often hung as decorations using string or thread.