In Mizuki's paintings of ghosts, Ittan-momen is portrayed as a creature having two eyes and two arms, as well as other characteristics in "Ge Ge Ge no Kitaro," but this is only Mizuki's imagination, so in real folklore and from descriptions by witnesses below, Ittan-momen is said to be just a cloth-like flying object, having neither eyes nor arms.
なお水木の妖怪画では『鬼太郎』に登場するキャラクターのように、2つの目と2本の腕を持つ布の姿で描かれているが、これはあくまで創作であり、実際の伝承や後述の目撃談では目も腕もなく、単に布に似た飛行物体とされる。