Furniture Design Windmill Multifunctional Stool by Xian Huang The Windmill stool is not only a three legged stool, but also is a functional decoration in a living space. The stool is unique with geometrical forms and is a complicated structure but simple to be assembled. The windmill stool can be arranged in different combination when have more than three Windmill stools together. Additionally, the hollow space between seat and legs can be put books or magazines, so people could easily read a book or magazine while sit on the windmill stool.