NY high school students assembled a mosaic of 500 heart index cards into the shape of a Christmas tree. They are selling the design as Christmas cards to raise money to support clean water in Cambodia.

The charity, “Four Girls For Families,” sponsors the cards, which are available for purchase at fourgirlsforfamilies.org

Read more at http://suffolktimes.timesreview.com/2014/12/54784/mercys-christmas-cards-raises-money-for-clean-water-abroad