I have actually been to Punxutawney, Pennsylvania. It was in the mid 1960's when I helped my father deliver a LusterRock bar counter to, I think it was, a hotel. Lusterock was a product that had stone or shell aggregate suspended in resin. It was used primarily for flat counter or table tops.
To keep with the Groundhog Day theme, here is a repeat of a previously posted drawing of mine.The question was, "What is the groundhog really afraid of ?"