Metamagic rod, Maximize
(Dungeon Master's Guide v.3.5, page 236)
Price (Item Level): 54,000 gp (18th)
Body Slot: — (held)
Caster Level: 17th
Aura: Strong; (DC 23) no school
Activation: —
Weight: 5 lb.
You can cast up to three spells per day, of 6th level or lower, where damage dice rolled are maximized as though affected by the Maximize Spell feat.
Prerequisites: Craft Rod, Maximize Spell feat.
Cost to Create: 27,000 gp, 2160 XP, 54 days.