Ruyi Jingu Bang (3.5e Equipment)
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The Ruyi Jingu Bang (Ruyi Bang or Jingu Bang for short) is a magic staff that grows, and shrinks at will by its user. It seems to be weightless to the person it chooses, but nobody else can lift it as it weighs 17,550 lbs.
It is a solid red color, with intricate gold tips on both ends. The staff cannot be re-shaped, magically or otherwise, but can be enchanted and/or have gems added.
When wielded by the Heir of the Monkey King, they gain +5 to attack rolls, and +1d6 to damage rolls. Attack bonus increase by +1 every 3 levels and damage increased by +1d6 every 3 levels. The heir will gain the additional bonuses whenever the staff has been retrieved. (Found at Level 7 : +7 on attack rolls +3d6 on damage rolls.)