Abbie Hoffman's inspiration was, in a sense, inadvertent. I wanted to do something to celebrate the 20th anniversary of Woodstock at the time, and it just happened that Abbie died the same year. Hoffman was always an inspiration to me, for his activism and execution of that activism, and any of his books will give you a guide and a map to creating almost anything, if you apply it to what it is you want to do.