Custom CMS block displayed at the left sidebar on the Catalog Page. Put your own content here: text, html, images, media... whatever you like. There are many similar sample content placeholders across the store. All editable from admin panel.
Actually most are under $10! Why buy the Pottery Barn or Crate and Barrel pillows everyone has when you can have custom ones for about the same price (a lot less if you are skilled with a sewing machine!)