Celebrate Earth Day on Easter with a Green Toys Safe Seas Sets. Choose from a Seaplane or Submarine (each comes with a copy of Joel Harper's children's book, "All the Way to the Ocean." MSRP Submarine is $19.99; MSRP Seaplane is $24.99. Green Toys Inc. makes an line of classic children's toys constructed from recycled plastic and other environmentally friendly materials. Information: www.greentoys.com. Recommended for ages 6 months and older.