If you don't feel like declaring yourself an RBG fan with themed clothing or accessories, a charitable donation makes an amazing birthday gift. Ginsburg founded the Women's Rights Project at the American Civil Liberties Union in 1972 and worked there until she was appointed to the federal bench in 1980. These days, the ACLU continues to do amazing work in the quest for reproductive freedom, equal rights and legal justice for Americans, so honoring RBG with a donation would be more than suitable. Ginsburg has also given support to Legal Momentum, an organization that fights for women's legal rights in America, and has internships, events and ways to donate.