Feats that give you fun new abilities

[Covert Operator]

I'd like to find a list of feats that probably never come up very often, but give you a unique ability.

Anyone got some cool ones?

Babble-Peddler allows a Bluff check to trade your thing for their thing.
Feign Curse causes a target to doubt itself as they wonder what kind of curse you just played on them.
Bewildering Koan lets a Gnome spend a Ki point as a swift action to block an enemy's next turn.
Well-Prepared and Shared Ownership let halflings non-magically pull items out of thin air. Only in RP games!
Umbral Shift gives Tieflings the ability to teleport swap places with one another as a swift action.

It's a spell, not a feat, but Opportunistic Loyalty lets you steal group buffs as they're being cast.

[Decimus Drake]

I like the Brilliant Planner feat but have avoided it thus far due to the 8 hour set up; there's every chance that I declare that I take 8 hours preparing a brilliant plan and spend one or more sessions doing nothing due to our groups tenancy to play every moment.

[avr]

Autonomous Hand lets one limb continue to act when you can't.

Elemental Commixture Is a teamwork feat which can be fun for a couple of blaster spellcasters.

Cut from the Air/Smash from the Air help fulfill certain fantasies about swordmasters.

[blahpers]

Decimus Drake wrote:

I like the Brilliant Planner feat but have avoided it thus far due to the 8 hour set up; there's every chance that I declare that I take 8 hours preparing a brilliant plan and spend one or more sessions doing nothing due to our groups tenancy to play every moment.

It's a pretty crazy campaign that doesn't have 8 hours of downtime ever. I'm guessing crafting isn't much of a thing either?