Joker Venom: A deadly poison that infected his victims with a ghoulish rictus grin as they died while laughing uncontrollably. This venom came in many forms, from gas to darts to liquid poison, and was his primary calling card.
Joker Teeth: A common weapon and theme for equipment for the Joker were "Joker Teeth." Clacking, wind-up gag teeth were commonly used to mock the Dark Knight and his allies. They were one of the Joker's signature items .