If you've seen the capybara shirts, then you've seen my endorsement of Kids in Need of Defense. These are the other organizations I considered donating the proceeds to: National Immigration Law Center, RAICES (but it seemed, I don't know, rude to raise money for Texas-focused RAICES by selling California merch).
To be honest, I don't really know what to do with this page yet. I have this dream of eventually offering some items on here, apparel or gadgets or something, and transparently giving all the proceeds to non-profit organizations doing good works. I haven't thought it through yet.