What would Harry do?
The Harry Potter Alliance is a charitable organization, an army of fans, who try to help fix the ills in the world. Their operations range from emergency help in areas like Haiti, trying to end starvation wages, societal acceptance of all sexual orientations, anti-bullying campaigns, body acceptance, and more.
You can help them out by buying shirts like this from their shop or by making a donation. Their recommended amount is a monthly donation of nine and three quarter dollars per month.