You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: PLAYTIME 
Clue: In 1977, Kenner sold gift certificates for toys based on this sci-fi film since the toys didn't exist yet
star wars

Category: STARRY NIGHT 
Clue: The helix nebula is in this constellation, whose "arm" holds 5 stars suggesting a water pitcher
aquarius

Category: NAME THE DECADE 
Clue: Disneyland opens & the peace symbol is created

the \'50s