There are Tessen products which are made of paper- or cloth-pasted on iron ribs, made of stacked iron pieces like Tanzaku (small card on which Japanese poems are usually written vertically), and which don't open although its appearance is like a Sensu's shape.
骨だけが鉄製で紙や布などを張ったもの、鉄の短冊を重ねたもの、また扇子の形を模しただけで開かない鉄扇も存在する。