Hi from PA. Yes TIppy and ANgie the Amish still do put a deliberate mistake into their quilts. I have two. Most of the time you would never see it. I know where they are in my quilts and still have to look hard. They beleive that only God is perfect so their quilts cannot be.
And Hillbilly I too took solice in quilting. My mom had just had her lung removed from cancer and I took with me a Giant Dahlia quilt top to hand peice while I was taking care of her. My mom is gone now but the beautiful quilt will always remind me of the time I spent with her. Currently a UFO.