More idioms like "needle in a haystack" relevant to hidden/hard to find items?

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Music by Eric Matyas
https://www.soundimage.org
Track title: Melt

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Chapters
00:00 More Idioms Like &Quot;Needle In A Haystack&Quot; Relevant To Hidden/Hard To Find Items?
00:29 Answer 1 Score 4
00:36 Accepted Answer Score 5
00:45 Answer 3 Score 3
00:53 Thank you

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Tags
#phrases #idioms #popularrefrains

#avk47

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