Abstract: There is a pneumatic mud stamp including an applicator, a tube-like member, a stopper, a retraction mechanism, ad a pneumatic control. The applicator is configured to apply mud in a pattern and includes a boot and a faceplate with a slot. The tube-like member is coupled to the applicator and includes a first chamber configured to hold mud, a second chamber configured to hold pressurized air, and a decoupling mechanism configured to open the tube-like member for insertion of mud therein. The stopper is slidably disposed within the tube-like member between the first and second chambers. The stopper provides a fluid tight seal therebetween. The retraction mechanism is configured to facilitate moving the stopper away from the applicator. The pneumatic control is configured to selectably dispose pressurized air into the second chamber.