Grow a tree in Tiki Resort with the Earth Day Charm
Two of the trees are fairly run-of-the-mill trees, but there is one with hanging willow-like pieces that looks quite neat and would complement a tropical island very well. You can get an Earth Day Charm by receiving one from your friends as a gift, or buying one from the shop for 9 Facebook Credits. This new Earth Day charm is likely to be in and out quickly, so if I were you I'd try to get one as soon as possible!
Which game will you be celebrating Earth Day in?