Sneaky Disarm (3.5e Feat)
From D&D Wiki
Sneaky Disarm [Sneak Attack]
Prerequisite: Sneak Attack +2d6, Improved Disarm
Benefit: Forgo sneak attack to disarm opponent without fail. You forgo sneak attack damage to disarm your opponent. This only works on held weapons. The consequences are the same as a regular disarm attempt.