Seven Wonders

The Seven Wonders of the World is a list of structures that exemplify ancient man's greatest feats of engineering and imagination. Let these structures, or any of the "wonders" of more recent lists, inspire your sewing project.
BUT. As a pioneer contestant, your entry must involve one of the "wonders" of the sewing world. Sewing inventions that exemplify man's feats in engineering and imagination include, but are not limited to: synthetic dyes, synthetic fibers, zippers, elastic, velcro, and sewing gadgets like the ruffle foot.
Challenge yourself! Select a "wonder" you have little or no experience with.