Hollywood Sign Becomes Hollyweed in 1976

This is some obscure prankster marijuana history, but back in 1976, the state of California decriminalized possession of marijuana. In celebration of this legislative change, Cal State Northridge student, Danny Finegood, slightly altered the famous Hollywood sign using $50 of materials purchased from the local store. After hanging a few white curtains, he turned "Hollywood" into "Hollyweed" to mark the occasion. Below is a photo showing the fruits of his labor.
Hollyweed sign in Hollywood in 1976

Source: Reddit Read a little more about this story at the cannabist.co.