During the early 20th century, Kutol Products was the world's biggest manufacturer of wallpaper cleaning products. But once coal heating in homes was replaced with oil, gas, and electricity, dirty wallpaper became less of a problem and Kutol was in trouble. So in 1956, they pivoted. From Smithsonian: Joseph McVicker was trying to turn around the struggling company when his sister-in-law read an article about how wallpaper cleaner could be used for modeling projects.