burnsk

It all depends on how you want to arrange your colors and how many fabrics you want to use.

Here is the block layout:
1 2 3
4 5 6
7 8 9
My last one, all the 5's were a mottled red
2, 4, 6, 8 were a light yellow
1, 3, 7, 9 were I Spy fabrics

Do you want to do each block in a different colorway as far as lights and darks in your blacks? It's a fun one to do. The results are endless. Play with it until you see what you want.

You could make all the centers the same color (maybe red or black) and do 2, 4, 6, 8 lights and 1, 3, 7, 9 darker colors, or reverse the lights and darks. Maybe play with it on some graph paper.