As you might know, Sebastian recently added single-file support to his Mojolicious framework. VTI has taken this functionality and run with it, producing bootylicious - a ~280 SLOC web log system. It sorts a directory of POD formatted blog posts, and even supports RSS. I think these single file apps is an excellent way to demonstrate your framework. I actually remember this as being a selling point for Maypole back in the days :)