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.
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Question: Category: THE NATIONAL TOY HALL OF FAME 
Clue: Initial sales for it were sluggish, but demonstrations of how it walked down stairs at Gimbels made it walk off shelves

Answer: a slinky


Question: Category: PATRIOTIC SONG TITLES 
Clue: "What so proudly we hailed at the twilight's last gleaming"

Answer: the "star-spangled banner"


Question: Category: HE WAS IN THAT? 
Clue: As a child Robert Blake played a Mexican boy in this Bogart classic directed by John Huston

Answer:
"the treasure of the sierra madre"