Familiar Stone

Source
This item is sold by at Sisters Sorcerous in Dalaran for.

Familiar stones
Using this toy will create one of the three stones: Arcane Familiar Stone, Fiery Familiar Stone or Icy Familiar Stone. The stones are not soulbound and can be traded to other players. They summon non-combat pet companions that cannot be used in pet battles. The pets are conjured items and will disappear after logout.