By TYLER ELLYSON UNK Communications KEARNEY – Nicole Mittman began creating and selling glow-in-the-dark paintings during high school, but it’s always been more of a hobby than a business. “I originally started painting them as a way to make money so I could go to Costa Rica,” the York native said. Over the past few years, her customer base has consisted mainly of family and friends, although she does have an Instagram account (@nicoles_paintings) and Etsy page … [Read more...] about Glow-in-the-dark paintings, grill basket win UNK’s Big Idea business contest