Unique Artisan Cool Cat Cynthia Chuang Brooch with vibrant colors. Features intricate patterns and playful design. Jewlery 10 . ONE OF A KIND. Handcrafted. The jewelry that Cynthia Chuang and Erh-Ping Tsai create is as intricate and detailed as anything an emperor ever wore: rich with metals, semi-precious stones, paint and above all, porcelain and worked with colored clay inlays, underglazing, overglazing, and millefiore techniques.