Get Aunt Lydia's® Size 10 Classic Cotton Crochet Thread at Michaels. Made from high luster mercerized cotton, Aunt Lydia's crochet thread is the perfect choice for wardrobe essentials as well as home décor projects. You can use it to knit a cute doily or make a tea cozy. Made from high luster mercerized cotton, Aunt Lydia's crochet thread is the perfect choice for wardrobe essentials as well as home décor projects. You can use it to knit a cute doily or make a tea cozy. We understand the importa