Brooms are normally used to sweep floors, but can also be used as weapons.

The broom is a special monk weapon. This designation gives a monk wielding a broom special options.

Simple Two-Handed Weapon
Broom 1 cp 1d4(3) 1d6(3) 2 4 lb. Bludgeoning

(3).The weapon deals nonlethal damage rather than lethal damage.

The broom might be added to the 'Weapon and Armor Proficiency' listing of any class which gets quarterstaves.