The prefered method to do this is by using the blurstrike special weapon ability from Races of the Wild.
The Spell Compedium has a spell (Distract Assailant?) that makes your enemy flat-footed.
In Complete Warrior one of the tactical feats allows you to make them flat-footed (it's bird flavored). For that matter, small characters with Iajutsu Focus can use the Giant-Fighting tactical feat IIRC.
As mentioned, Tome of Battle has a few abilities that can make the enemy flat-footed. The Gloom Razor feat is the best bet, but White Raven Strike followed by Moment of Perfect Clarity can also get the job done.
None of these work as well as blurstrike IMHO though.
The Spell Compedium has a spell (Distract Assailant?) that makes your enemy flat-footed.
In Complete Warrior one of the tactical feats allows you to make them flat-footed (it's bird flavored). For that matter, small characters with Iajutsu Focus can use the Giant-Fighting tactical feat IIRC.
As mentioned, Tome of Battle has a few abilities that can make the enemy flat-footed. The Gloom Razor feat is the best bet, but White Raven Strike followed by Moment of Perfect Clarity can also get the job done.
None of these work as well as blurstrike IMHO though.