Coins... silver dollars mainly morgans and peace I have about 85 all in pretty good shape many BU condition
I'm with Dante, only coins...mainly US
perhaps gambling books also.... both paper books with pages, and sportsbooks.
I did collect LV gambling tokens ( at face value only), for awhile... lost to burglars.
I've known people that have collected some more unusual stuff:
Matchbooks
Hats
Beach sand
cans/bottles
hood ornaments/hubcaps
cats
fossils
T-shirts
insects
rocks
etc.
Dante: The silver dollars are all mostly high grade ( Xf,AU,Unc), because they were too big and heavy to circulate. The coin was largely minted due to political reasons....sort of a deal with the silver mining industry of the time. You could get BU bags at face up to the early 60's. Some dates are more common in BU condition than circulated.
Actually similar to all these Presidential dollars being produced now, that never leave a bank vault.