Over the years I've picked up this and that ephemera that are "on the periphery" of poster collecting. Here's a few of mine that make me smile.
Pinbacks of the Universal monsters that came out in the heyday of the Monster Kid/Shock Theater phenom.
A little Harryhausen and Lugosi
Blacky LaGoon and friends
Three Stooges flicker rings and gum card.
Harryhausen pins and one of his early biz cards.
Bela, Kong and Godzilla.
War of the Worlds.
A little Hammer.
Those M&M guys enjoying 3D.