Crossword Genius

Collectibles such as ticket stubs and matchbooks (8)

Ross

I believe the answer is:

ephemera

(Other definitions for ephemera that I've seen before include "Flyer" , "Things that last a very short time" , "they'll soon be gone" , "Transitory things, lasting only a short time" , "Mayfly - something short-lived" .)

I've seen this clue in the LA Times.
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