The Jester Mechanism is one of the many monster drops that can be acquired in the Frontier. The Jester Mechanism are typically acquired as a possible drop from the Jester, a mechanical humanoid-like figure that can be found in the Abandoned Orchard or Petrified Grassland at nighttime.
As its description, it is a strange and complex mechanism used to give life to the mechanical jester. The mechanism is composed of several multi-colored parts that represent Fantastic Frontier. A triangular arrow-shaped prism can be seen at the center of the mechanism, emitting a red glow.
It is possible for players to exchange Jester Mechanisms for gold during Slayer's Tasks if the task card is currently active. Other than that, it can be sold to a selling vendor at a selling price of 5,000 gold.