I am a professional singer. I earn a good living in this profession. However the need of the day is to market and promote oneself beyond the usual limits. I have heard about people creating merchandise for promotion. I would like to know more about this. I want to know what kind of merchandise should create or tailor, what will the costs like how much will I manage to recover, should it cater to the internet or otherwise, etc and other such details. Where can I get such information?