Knitting, Crochet & Fiber Crafts > Yarn > Knitted Knockers Approved Yarns Knitted Knockers are special handmade breast prosthesis for women who have undergone mastectomies or other procedures to the breast. Traditional breast prosthetics are usually expensive, heavy, sweaty and uncomfortable. They typically require special bras or camisoles with pockets and can’t be worn for weeks after surgery. Knitted Knockers on the other hand are soft, comfortable, beautiful and when placed in a regular bra they take the shape and feel of a real breast. Our special volunteer knitters provide these FREE to those requesting them. For more information please visit Knitted Knockers.