http://en.wikipedia.org/wiki/Tennis
http://en.wikipedia.org/wiki/Oval_%28projective_plane%29

Lawn Tennis Racket are Oval (Egg) shape string with a Handle to Hold.

Can there be further enhancements in Lawn Tennis Racket Design ?.

Other than "Oval" Geometrical Shape of the Lawn Tennis Racket Head, which other Geometrical Shapes can be taken as an Best alternatives viz Square, Rectangle, Circle, Triangle, Pentagon, Hexagon, Octagon, Cube, Sphere, Cylinder, Cone, Prism, Pyramid ?

Will the new shapes tried out for Constructing Lawn Tennis Rackets with different Geometrical Shapes other than Oval shape can bring variations in the Game while hitting the ball by the Lawn Tennis Players ?

Thanks & Regards,
Prashant S Akerkar