Hmmm yes, I also thought maybe dark green. I have to see what I have too. It is good to hear reconfirmed what is crossing my mind also. I did think of red but I think DD, mama of grand son, likes dark brown, green and blue. Lets see what I can find. Most of my fabric is in the FQ or smaller range with a couple of bigger pieces.
I also wonder if I should just sew the blocks together and put a border around it all with another kid's print. If I put sashing I will not put a border on as it will most likely get too big. What is your thoughts on this?