Metamagic Item

Level: Artifi cer 3
Components: V, S
Casting Time: 1 round
Range: Touch
Target: Spell trigger magic item touched
Duration: 1 round/level
Saving Throw: Will negates (harmless, object)
Spell Resistance: Yes (harmless, object)

You temporarily apply a metamagic feat you know to a single spell contained within a spell trigger item. For the duration of this infusion, anyone who casts that spell from the item gains the benefit of that metamagic feat.
For example, you could imbue a wand of fireballs with the Empower Spell feat or apply the Maximize Spell feat to the cone of cold spell in a staff of frost.