John Austin 
Mini Weapons of Mass Destruction 3 [PDF ebook] 
Build Siege Weapons of the Dark Ages

Utilizing easy-to-find and inexpensive materials, this handy resource teaches desktop warriors how to build a multitude of medieval siege weapons for the modern era. Novice combatants will learn to build 35 defense weapons, including a marshmallow catapult, a chopstick bow, a bottle cap crossbow, and a clothespin ballista. In addition to beefing up their Dark Age arsenal, would-be warriors are provided with a number of targets on which to practice their shooting skills. Clear diagrams, instructions, and safety tips for each project are included, making construction of each of these weapons simple, safe, and fun.