10/ Crayons That Stay Put. American Crayon introduced the Kindograph and Kantroll brands especially for children and the patience of parents and teachers. The crayons were thick enough for little hands to grasp with large easy to read labels but the critical element was they wouldn't roll away--instead of being round, they had a flat end to keep them in place. This and other stories in my book Color Capital of the World: https://blogs.uakron.edu/uapress/product/color-capital-of-the-world