Ghost Touch Armor

(Spell Compendium, page 102, DnD 3.5)

Transmutation

Level: ; Cleric 2; Sorcerer/Wizard 2
Components: V, S, M
Casting Time: 1 standard action
Range: Touch
Target: Armor of creature touched
Duration: 1 minute / level
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)

Confronted with incorporeal enemies, you give the armor you touch the power to defend against such foes.

The subject's armor gains the ghost touch special ability (DMG 219).
Material Component: A tiny shield made of resin.