Kathy Sierra has an excellent post on the problems with showing a stakeholder a demo. Do you work your ass off and make the slickest demo possible or do you show them a sketch on a napkin?
The thing I want to point out is the Java part of the entry. The Napkin Look & Feel shows the power of layout managers in Java Swing and is about the coolest thing ever! Check out a page of the swing set demo using it:
