I guess I'm curious as to why one would want to. I think birthmarks are unique, individual markers. I have a cousin who has a wine stained birthmark across 2/3's of his face and I find it a handsome attribute...it makes him, him. I'm sure when he was younger it made it difficult for him with others, but I know it has shaped him in many positive ways and has made him the kind, compassionate, empathic man he is today. Anyway...just curious about your reasons.