Smokey Bear (often called Smokey the Bear or Smokey) is a mascot of the United States Forest Service created to educate the public about the dangers of forest fires. He appeared in Disney's Humphrey the Bear cartoon, In the Bag.
In the Bag
Humphrey tried to get rid of the litter by burning it, but Smokey came in stomping on the fire and said, "Remember, only you can prevent forest fires."
A couple of Smokey Bear ads feature footage and characters from Bambi and, at one point, Sleeping Beauty.