New Tradition

I'm starting a new tradition in my house.  I made a pillowcase for the girls to use on their birthday.  It's a silly little thing to make them feel special on their special day.  Some families have a special plate, we have a pillowcase.  I wonder if something like this would sell on etsy? 

I'm planning on making a matching reusable birthday banner, too, but we'll see what comes of this week.