Into the lion's den I went. I visited a quilt shop out in the country looking for fish fabric. They have Moda fabrics which the one downtown doesn't. Oh, my. Every one was prettier than the last. What did I purchase? 1/2 yard of fish fabric for a baby quilt - the parents and grandparents are all fishermen. I had planned a fish quilt, but there are Jacob's Ladder blocks in my deceased SIL's stash. I will sew those together for the front and use the fish print with some of my stash on the back. So a total of 18" of fabric bought for one quilt isn't too bad.
Conchalea, my Irish Chain on machine #2 has two separate off whites. I think it will be fine when it's quilted as will yours.