Wonderful scrappy. A scalloped border will be so cool paired with it.
Here is the challenge.
If it were me I would make a stopping border ( 1 or 1 1/2" w) in one of the darker colors and
the kicker......
A wide piano key border in all the left over scraps and then after they are added and quilted, cut the scallops into the piano key border!!!!! Wow-za, IMHO, or not.
peace