c++ project

students of class XII have been given the task to make a project in c++, but there is no idea howz dat?...what are the main topics?....some one will say you make a payroll program others will say to make a student management software...some posters wiil say you to make a game.There is a big confusion in it....wat to do?... what project should i do? There is no idea about using graphics or not!some are still using graphics... even when it is not in the course..to be smart. in fact problem takes the big position due to unavailability of an officially cvertified book of ncert. CBSE should clarify these things as no NCERT book is available for C++(&computer science); Readers please suggest a topic. i am in trouble. Bye