Jess and I were joking around about a character having Kung Fu grip so we made these feats. They are intended to be a joke, but as a GM I’d allow them given their situational nature.

Kung Fu Grip [Feat]
Prerequisites: Base Attack Bonus +3, Strength or Dexterity 15+
Benefit: You gain a +4 bonus to your CMD against disarm attempts.

Improved Kung Fu Grip [Feat]
Prerequisites: Kung Fu Grip, Base Attack Bonus +8, Strength or Dexterity 17+
Benefit: You cannot be disarmed.