Be green and save some green on St. Patrick's Day at Cleveland Metroparks Zoo. If you have an old cell phone, aluminum cans (1 lb. minimum), shoes and/or cooking and dining supplies you'd like to recycle, drop it off at the Zoo's box office on March 17, and you'll receive a $2 discount on Zoo admission. Volunteers will accept the above mentioned recyclable items from 9:30 a.m. to 4 p.m. outside the Zoo's box office. These special offers are redeemable on March 17, 2013, only. Limit one discount per person. Proceeds from the aluminum can recycling will support the Zoo's Cans for Conservation program, which helps fund conservation projects here and abroad. The Cans for Conservation collection this year will benefit Slow Loris Conservation, The Little Fireface Project. Cell phones and cooking and dining supplies will be recycled through various organizations; and Terracycle will recycle paired shoes in good condition shoes (all types except sandals, slippers, skates).