Facial prosthetics ---made to counter damage from cancer, trauma, birth defects --- haven't gained the attention of artificial legs and arms. The specialists who craft them can be hard to find: The International Anaplastology Association counts just 150 members worldwide. But facial prosthetics are becoming more realistic and longer-lasting, and include things like titanium rods adapted from dentistry that bond with bone to hold them in place, and flexible silicones. Even 'flocking,' using those nylon particles that make the velvety insides of jewelry boxes can help give silicone 'skin' more dimension---and not in flesh tones, but flecks of bright reds, plums, blues, oranges.