Illusion Mastery (Item Mastery)Source Weapon Master's Handbook pg. 26
You can weave figments with illusion magic items.
Prerequisites: Use Magic Device 2 ranks, base Fortitude save bonus +4.
Benefit: You can cause an item that has an illusion spell of 1st level or higher in its construction requirements to cast minor image. You can use this feat once per day, plus an additional time per day at base Fortitude save bonus +6, +8, +10, and +12.