Item: Eyes of Doom: These smoked crystal lenses fit over the user’s eyes, enabling him to cast doom upon those around him (one target per round) as a gaze attack, except that the wearer must take a standard action, and those merely looking at the wearer are not affected. Those failing a DC 11 Will save are affected as by the doom spell. (image source; item source)

Item: Skull Pauldrons mounted with a pair of slain monster skulls, giving the wearer two extra Head Slots on which to wear hats, helmets, periapts, &c., gaining any magical effects of those items. Both skulls can talk and have their senses (sight, hearing, &c.) but cannot move; the one on the left is Lawful Evil, the right Chaotic Evil.

  • offering strategy advice
  • mumbling at inopportune moments about their hat being out of style
  • complaining about wanting to trade places with the “main head”
  • if the party is good-aligned, actively trying to get them killed by yelling to attract monsters
  • technically you could also make use of their Eye slots, but do you really want a couple of Evil-aligned liches mounted to your shoulders to have Heat-Ray Vision or whatever
  • wily characters might manage to use some alignment-altering magic on them
  • general silliness that comes from forcing a character to wear a couple of NPCs around

(source, in case you really want one)