Frazer Harrison/Getty Images
He's asking for donations to the two organizations through a Prizeo campaign, and there are 60 days left. But feeling good about donating money to a good cause is only half the reward.
For $20,000, Martin will name a character after you in an upcoming "Song of Ice and Fire" novel. You can choose what your character does, and, perhaps best of all, your character will "certainly meet a grisly death."
For $7,500, you "will be sent one of George's old greek sailor caps (well worn!)."
But even if you don't have that much coin to spend, you can still win a pretty tremendous prize: all donors will be entered into a contest where the prize is to fly out to Santa Fe with a friend to spend a day touring the Wild Spirit Wolf Sanctuary with Martin himself.
Check out the video from fundraising page below: