Advancement in technology has replaced typewriters with computers. We, the human beings, always gaze at the new dimensions and possibilities that may offer more ease in our daily life. Similar efforts are taking place in multi-touch community to provide the users with interactive interface. Control is now shifting from keyboards to the tips of our fingers. Human interaction via touch is becoming more common by every day. A Team of 5 computer Engineer's developed the cost- effective multi-touch surface. They used ordinary projector instead of short-throw projector and they replaced the IR camera with the regular use web-cam. you can make your own cost-effective multi-touch surface by following DIY approach.