Toss Master (3.5e Feat)
From D&D Wiki
Toss Master [Fighter, General]
A player with this feat is able to use any object 5lbs or lighter as a thrown weapon.
Benefit: You do not suffer any penalties for using an improvised ranged weapon. You receive a +1 circumstance bonus on attack rolls made with improvised thrown weapons.
Normal: You take a –4 penalty on attack rolls made with an improvised weapon.