In the 1971 season, Magic Mountain obtained permission from Warner Bros. to use "Looney Tunes"/"Merrie Melodies" characters. However, they did not continue using the characters after their first year. In 1972, they began using trolls as the park mascots. The trolls King Blop, also known as King Troll, Bleep, Bloop, and the Wizard became recognizable symbols of Magic Mountain. All King Productions, a contractor, provided the entertainers wearing the costumes until December 31, 1972, when Magic Mountain took on that role. The characters were used until 1985. Also in 1972, a second flume ride named Jet Stream was added.