I have seen these:


Mars Attacks Uprising P1 to P3

Garbage Pail Kids NYCC 2019

Stranger Things NYCC 2019

WWE Money in the Bank John Cena NYCC-19

Looks like there were some for Star Wars, as well

Aside from the Star Wars promos they gave out with purchases, there was a Darth Maul Masterwork promo.

There were at least 2 NYCC exclusive promos for Garbage Pail Kids

Shows character looking at a defaced Adam Bomb portrait, says NYCC 2019 on both front and back

Village of the Adamed


Both say NYCC exclusive on them; the latter seems to be less common on ebay than the former