They are wonderful. For those of us with extra unused pillowcases around the house. I suggest we just decorate already existing ones. I have done two pairs with my embroidery machine and the decorative stitches on my sewing machine.
I used that method several years ago to make special pillowcases for all of my grandchildren. When I purchase a sheet set I always have the top sheet left over as my husband refuses to sleep under one. I usually make extra pillowcases from that sheet.