This trick is sometimes used by Iaijutsu Focus-abusing characters who don't want to or cannot use a Gnomish Quickrazor instead. They carry an arbitrarily high amount of weapons of choice (however many they need), quickdraw them, and then drop them to draw another one as part of the same full attack action for Iaijutsu Focus damage on another attack.
The imagery for this one is awesome though, so it might get past.
I always imagined it would look like the final attack of this:
http://www.youtube.com/watch?v=uJugUYSohqY&feature=related