I made a board on Pinterest to get some other ideas and ended up buying this gray fabric as an accent color for "side B"
I think it really turned out well! I basically triangled 10 1/2 in. squares to form my quilt squares...and since it's King Sized...it's 11 squares wide and 10 squares long.
I'm still shopping around for one more navy and white print fabric for the star...let me know if you find anything cute out there :)