Tumors involving the clavicle by primary or metastatic growth may require clavicular resection often with rib resection. The resulting cosmetic and functional impairment of clavicular resection may be significant with a sloped appearing shoulder girdle and chronically impaired movement of the upper extremity. We report a 48-year-old woman presenting with a bulky metastatic renal cell mass of her left clavicle extending to the chest wall. We report en-bloc clavilculectomy and chest wall resection with a novel method of reconstruction using a single methyl methacrylate and prolene composite prosthesis in a configuration resembling the state of Oklahoma.