I just finished going through a large box of miscellaneous stuff that I've just been setting aside for the past 2 years while going through all the slot card collections that I acquired while being stuck at home. I wound up adding over a thousand items to my Delcampe store. Here's some links that will take you to each category with the latest listings first. You do not have to have an account on Delcampe, we can deal direct. Just email me if you see anything of interest. I'm always interested in trades or I can sell direct. Besides slot cards I recently started saving coupons and coupon books, roulette cards plus I've always been on the lookout for various slot card related things like slot card reward instruction cards, brochures, etc.

If you have any interest in coupons or coupon books, this link will take you to the latest listings with a little over 200 entries. I'd even be interested in trades or buying coupons or coupon books if you have any doubles.
https://www.delcampe.net/en_GB/collectables/search?seller_ids%5B0%5D=554914&categories%5B0%5D=1924

Brochures can be found here although there's less than 20 listed currently. Personally I only collect those brochures that have player club/slot card information.
https://www.delcampe.net/en_GB/collectables/search?seller_ids%5B0%5D=554914&categories%5B0%5D=24836

There's also a few keyrings
https://www.delcampe.net/en_GB/collectables/search?categories%5B%5D=1775&search_mode=all&excluded_terms=&is_searchable_in_descriptions=0&is_searchable_in_translations=0&term=casino&seller_ids%5B%5D=554914

Paper Napkins
https://www.delcampe.net/en_GB/collectables/search?seller_ids%5B0%5D=554914&categories%5B0%5D=6988

Coasters (Delcampe calls them Beer Mats)
https://www.delcampe.net/en_GB/collectables/search?seller_ids%5B0%5D=554914&categories%5B0%5D=1886