Maggot Blade

  The Maggot Blade is a devious device used by assassins and torturers. The hilt is made of bone, with a strange light purple gem in the crossguard and a wavy snakelike blade. The metal of the blade is some form of blackened metal, the exact type is not immediately discernible. Close examination reveals that the blade's edge has a series of what appear to be tiny nicks.
  Anyone cut by the blade(or consuming meat prepared with the blade) must make a save vs. poison or become the host to  1 blade maggot egg per point of damage inflicted(or 1d6 maggots in the case of consumption). In 10+1d4 days the eggs hatch. After the eggs hatch, the blade maggots begin to devour the host in the same manner as Rot Grubs. Once the host has been slain, the maggots die within a matter of moments.