“She saw endless potential in Shapeen and assembled an audience of 3M executives to present a number of ideas she had for products—more than 100 in all. The gathering was brought on by Turnbull’s fascination with a molded material that held its shape. At the presentation, which she titled ‘Why,’ she impressed 3M with the scope of potential for the material. The company quickly enlisted her to work on a design for a molded bra cup.” Sara Little Turnbull, Who Designed the N95 Mask Using a Bra Cup. That really turns me on (intellectually).