Thanks to Rafa — see previous blog post, I’m reunited with these Japanese banners, which made such an impact on me when I was first in Japan in 1980. I think I saw images of them before I went and loved the boldness of them.
By あなたのサンドバッグになりたい - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=10252434