Faced with a beautiful sunset in Perth last August and with her smartphone battery dead, 24-year-old Teresa Lim did what any self-respecting Millennial would do. Whip out her embroidery kit of course.

The beautiful hydrangea, in a clay pot, stands about three feet tall in the window. It’s not until closer inspection that you realize, not only is it not real, it’s actually made of embroidery: a ...