We've had Green Lantern rings. We've had Invisibles buttons. We've had Morbius The Living Vampire teeth.

Well, the latest giveaway to promote a new comic has been announced by Marvel and it's one that might turn a stomach or two.

Eyeballs. More specifically, Watcher eyeballs. To accompany the release of the Original Sin summer event.

Retailers will get three free bags of Watcher eyeballs if they order 175% of their orders for Avengers #25 and sign up to the Original Sin party promotion. Other promotional items include a Deadpool Dancing variant, invitation postcards and Skottie Young lithographs…

UPDATE: Newsarama has the visuals…