Here is a limited, rare, WonderCon 2024 exclusive enamel pin by National Cartoonists Society, an artist organization that the creator of Groo the Wanderer, Sergio Aragones participated.
Condition: New, in original packaging
Size: Enamel pin size is around 1.25 inches (3.2 cm) in diameter. Overall package is 2.5 x 2 inches (6.35 x 5 cm)