Celebrate the season with an environmentally friendly twist at this hands-on affair. No need to buy craft supplies—little scientists visiting New York Hall of Science can bend, sculpt and animate their own holiday projects via workshops, demos and artists’ installations. This year’s event includes opportunities to craft fabrics and old toys into new incredible creations, reuse holiday paper to create festive garlands, and learn how to grow mushrooms for the fungi's amazing ability to remove toxins from the environment. Families can also watch a sculptor create extinct animals from ice. All ages.