I started with blue, my favorite color:
I decided to try an offcenter design, soemthing a little different:
Then, I rotated the blocks and came up with tic-tact-toe. Since it also looks like hugs-n-kisses (XOXO) I changed the color scheme to pink:Finally, I decided to play with a scrappy color scheme. I put the blocks on point and added a piano key border. There is a thin inner border so the main design "floats."