Great feats that only apply to specific weapons?

[Augment Tab]

I'm going to be playing a character that will eventually be taking advantage of the Adaptive weapon ability, and I want to see if anyone knows of any worthwhile feats that are exclusive to specific weapons. For instance, Lightning Mace is only applicable when used with two maces, or Boomerang Daze only works with Talenta or Xen'drik boomerangs.

[Big Fau]

There's a dozen or so in Drow of the Underdark, and there's more than just Lightning Maces in CW.

[Darrin]

Shadow Blade might work, although there's still some debate about that.

Races of Eberron has several: Bladebearer of the Valenar, Darguun Mauler, etc. But I'm not sure if they are worth the bother.

Wind and Fire, though... Secrets of Sarlona. Eagles Fury from Sandstorm. Take a look at those.

[Necroticplague]

Boomerang Daze and Boomerang Richochet. Tormtor School.

[MisterKaws]

Well, one of the really odd archer optimization tricks involves using Warblade and Unorthodox Flurry to do a Decisive Strike followed by a Time Stands Still via Belt of Battle.