This flat pattern glider design is based on a foam glider that flies well.  This flat pattern glider does not fly as well as the foam model.  The surface tabs work pretty well in keeping the surfaces perpendicular when assembled.  The cylinder in the nose secures one or two 6 x 2 mm magnets that add weight to the nose and bring the center of gravity of the assembly farther forward, but apparently not enough.  It might be interesting if you can get this to fly better than I could.