Thank you everyone for the great comments and helpful suggestions. Thank you especially to DogHouseMom, Duster and Peckish who played around with their quilting software and gave some great examples. It is amazing how helpful those programs are. The piano key example, while conceptually seemed like a good idea, when you see it laid out like that, you can see how distracting the border would be.
I like the idea QuiltE gave and DogHouseMom and dunster helped visually expand on with some of the irish chain extending "into" the border, but I'm not really set yet on any one idea. I know that if I was to use that idea, I would have to shop for quite a bit more white on white as I have very little of that left. The thought of making so many more itty bitty 9 patches isn't great either!! I don't want a really big border as the quilt is plenty big enough already (I don't really even know what I'll do with this other than hang it over a quilt rack somewhere). I'm even thinking about not doing a border at all.
If I was really skilled in applique (which I have done none so far), my first idea when I started this quilt is very close to Peckish's idea of the vines. Mine would have little flowers in the same colors as my fabrics and green little leaves in all the green colors.
To the posted that said they have made 2 of these and still plan another--WOW!!! I am just barely going to survive doing this one. That is a lot of work. I would consider doing another similar to this but just doing the shoo-fly blocks and alternating with a solid block maybe. Also, I might consider increasing the size of the blocks to make it a bit easier as well.