Zeeland Christian School is among three finalists in a six-state region to win a playground made from recycled oral care waste. The school that earns the most "playground credits" by recycling empty toothpaste tubes, toothbrushes and floss containers — and through online votes — by Sept. 30 will be named the winner. The Colgate Meijer Playground Challenge is a partnership between Colgate, Meijer and TerraCycle.