Opportunity : Market a magic-board board as stick pad ...etc
              given the context and nature of the use.


              well essentially a polytene sheet over ( duplicating ) carbon paper 
              where the quantum or concentration of carbon is high ....polytene 
              sheet is placed over the carbon sheet ....text or pictorials are
              written with a stylus on the polytene sheet ....with the text or
              pictorials or scribbilings ...being erasable by just flipping the
              polytene sheet once.              

Note: The above problem statement having been encountered in various scenarios
      and detailed in various 'Proof of concepts' as mentioned in 
      
       http://uk.geocities.com/ravivenkatus/projects.pdf
       http://ravishankarkv.tripod.com/projects.pdf
        ....apply appropriate
      'use-case' modeling, rationalize and arrive at a workable and feasible 
       solution both commercially and techinically viable.

             

           


 
             