According to a post on Wilton Cake Decorating Facebook page, it is saying thank you to customers who shared their creations of “Candy Melts treats”

From the screenshot.

Happy Fan Love Friday! Thank you to everyone who shared their creations with us – we loved seeing all of your Candy Melts treats! Next Monday we’d like to see the shaped birthday cakes you’ve made! Find our shaped birthday cake ideas here: http://ow.ly/TYZl30oxC8H