A man's penis
Those bitches wouldnt shutup, so he whipped out his peace maker and order was restored
brass knuckle used in a fight to win the fight;called peace maker because after used the person you fought wont mess with you anymore creating peace between two individuals.
Heres an example using two charachters named Alan and Nate.
Alan-Hey bro that guy you about to fight is big.
Nate-dont worry,I got my peace makers on.