Santa Spud was given to be by a family who knew Potato Head is a treasure for encouraging listening and spoken language skills.
Their daughter was a preschooler at the time and today a Senior in High School.
There are many articles on using Potato Head for listening and spoken language development. Below are links:
How to use potato heads to encourage language skills by Expressly Speaking
The Many Faces of Mr. Potato Head by Playingwithwords365