Filmmakers Michael Reich and Mike Pinkney use marionettes to illustrate the dangers of driving while high. A Puff Before Dying is a spoof of road-safety PSAs, in which three teenage girls smoke marijuana. They hallucinate some really cool stuff, but eventually we find out how easy it is to portray graphic carnage with puppets.
While it is satire, this film is listed as a PSA at the National Road Safety Foundation website. Read more about the film at Short of the Week.