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.
You can buy this button embroidered by Kate or make your own. If you embroider your own, then bring the fabric in for Kate to make it into a button for you -- special gift for your children or grandchildren or people of all ages!