Examples of suitable thermoplastic materials include polyolefins such as low, medium, and high-density polyethylene; polypropylene and copolymers thereof; poly-4-methylpentene; polystyrene; polycarbonate; polyacetal resins; polyacrylethers; polyarylether sulfones; nylons such as nylon 6, nylon 11, or nylon 66; polyesters; and various fluorinated polymers such as fluorinated ethylene propylene copo