Pygmy Oil

As an ingredient

 * Indestructible Alchemist Stone
 * Flask of Pure Mojo
 * Guru's Elixir
 * Potion of Speed
 * Potion of Wild Magic

Trivia

 * Pygmy oil results in the smallest size decrease available to players. Whereas most other items reduce size by ~20%+. Making pygmy oil a good item for reducing character size in roleplay. However, with a short duration, it is made less appealing.
 * The item was made prior to pygmies being actually introduced to the game, thus it makes the player appears as a gnome with a Big Voodoo Mask.