Sticker Robot is offering this sticker and another sticker designed by Ernesto Yerena. You can get a free sticker OR you can order a bundle and spread the word.
This is a great example of the power of art to communicate an idea visually to create greater impact. Support this cause through StickerRobot
If you want to learn more about the Lakota and life on a reservation, read this eye-opening story from National Geographic.