I got a pair of pillowcases at an auction and just wanted to share how they were done. These were homemade pillowcases in a lavender color with white rickrack sewn on. Here are a couple of pics.
As you can see there are three loops of rickrack across the front of the pillowcase. The back was plain. In each of the loops there is a white circle and then the rickrack was applied with embroidery floss in a lazy daisy stitch. These are photos taken on my old phone so hopefully my new phone will take better pics. I just love these pillowcases. Someone spent some time on them and it shows.