I'm making a group of artillery pieces for my Alamo set up. BMC carriages with Armies in Plastic barrels and Monopoly "hotels" for the ammunition chests. Two other guns, one the 18 pounder in the South West corner of the Alamo, are repro MARX. Barzso pirate cannon make up the guns covering inside of the Alamo main gate. The "Gunade" is scratch built from a ship model carronade gun. Spare Monopoly pieces can be bought on Amazon.