Magic squares

Magic square is a square in which the sum of rows,columns and diagonal remains constant . one such magic square is
8 1 6
3 5 7
4 9 2
From one square you can create other magic squares by applying some properties to the original one. So try out new magic squares keeping the property of magic square in mind.
for more details :
http://www.mathematische-basteleien.de/magsquare.htm
http://en.wikipedia.org/wiki/Magic_square