Okay, if you just have two fabrics, then that is what you have.
I know there have to be two fabric quilts out there. You could just do a checkerboard thing. Those are cute. You could make the squares quite large. And I know I have a two color quilt somewhere. Maybe I can find pictures...
Okay, the blue and white one has two blocks...a 9 patch and a rail fence. They are set on point and alternated. The red and gold one is just a checker board.
Perhaps one of these might work for you?
Dina