Greek key is a unique block, and it doesn’t lend itself to secondary designs like some blocks do. It is the star, and you might as well go along with that rather than fight it. Here are some layout options to get you started.
Greeks in a Row
A simple layout of blocks gives a fun design.
Changing the orientation so that the dark strips meet in the middle give the effect of dark spinners on a light field.
Negative spinning Greeks
Changing the light and dark placement means light spinning on a dark field.
Every other Greek
Alternating with plain blocks makes the top less busy. It gives a great opportunity for free motion quilting to shine.
Greeks on Point
This block looks great if you simply turn it on point. It has a totally new look and a nice all-over design.
Like always, you can also change up the looks a lot with colour. I have shown only two-colour options.
Review my simple method for making the Greek Key block HERE.