Not canonical, but it really helped me imagine her hometown. If it were cannon then here is the story
Wishing Fountain was a little band Penny was a part of in her hometown. They took some classic folktunes that were often sung in their spots and added their own unique flair to it, with Penny being one of the artist to really push the music and see how different it could be. It felt a bit out of place in the perpetually autumn neck of the woods, but it was a lot of fun.