I'm thinking an aqua border with a black and gray polka dot binding.
One thing I wish I had done differently is fussy cut the center panels of the Alexander Henry black and grey geometric fabric. You can see the one square where I did fussy cut (the one with the circle perfectly centered), which happened to be the one that I cut last.
I added one more column of blocks to make the quilt a little wider. I'm pleased with how this quilt turned out- appropriate for a 9 year-old boy, but not too juvenile that he'll outgrow it.
