Blizzard just added the Cenarion Hatchling pet to the Blizzard Store, and sales of the critter will be going to a good cause. Between now and July 31, 100% of the $10 adoption fee will be donated to the American Red Cross's Japan Earthquake and Pacific Tsunami relief efforts.
As a point of comparison, in February 2010 Blizzard was able to donate $1.1 million to the Make-A-Wish Foundation from sales of the Pandaren Monk pet. Only 50% of the proceeds from that event were donated to the charity, so we'll just have to wait and see how money Blizzard can raise for the Japan relief effort.
Will you be purchasing a Cenarion Hatchling pet?