She uses a pillow on her settee as a cushion so it woudn't matter about embroidering over it all (not like as if she was going to lay her face on it and get a pattern on her face).
I found a nice white cotton pillowcase in my local charity shop that looked brand new, the tag inside doesn't look like it had been washed. I had a look on the internet for some ideas as I haven't done any proper embroidery for years, just labels for my quilts. I used a couple of designs I found for some pretty flowers and then found a lovely poem that had a couple of lines about a pillow in it which was very appropriate so I wrote this out on the pillowcase and embroidered over the top of the words. I also put her name on the top.
Here are a couple of pics of how it turned out. It looks very big to me but I think that might be because it has a bit around the edge outside where the pillow goes sort of like how a frill would be but not frilly.
Here is a close up of the poem.