I would stitch down all the basted flutterbyes. Then I'd toss all of them into a lingerie bag and put them on a delicate cycle with Woolite (it's not just for wool). Hang them to dry and you can trim the squares down to whatever size.
How about sashing each block in a different solid color taken from the prints? A nice light, happy print or two for borders? Or even a scrappy piano key border with all the colors you can scroung up that are in the designs?