My grandmother probably never thought of herself as mathematician, yet she had an understanding of rotational, translational and reflective symmetry. Fiber arts, especially as practiced by women, was seriously neglected in the cannons of artistic works until the 1970s. The feminist movement brought attention to the culture of women’s lives and their contributions as craftspersons and artists. Many women created quilts and other fabric art in hardship by gathering and sewing together little pieces of cloth, sometimes transforming even rags into art for their home.
I have no familiarity with mathematical subjects of plane and spacial symmetries, but I do know that nothing makes a room look more cozy than a quilt on a bed.