Don't underestimate the effectiveness of prototyping. All too often some great benefits of prototyping an invention can be played down or completely ignored when "experts" decide to try the problem. But turning your idea in to a product sample is just about the important a part of inventing. So if http://setherdo81357.pointblog.net/Why-Prototype-Your-Invention-Five-Reasons-To-Build-Your-Idea-28279756