Mini Weapons of Mass Destruction 3: Build Siege Weapons of the Dark Ages

Mini Weapons of Mass Destruction 2: Build a Secret Agent Arsenal

Mini Weapons of Mass Destruction: Build Implements of Spitball Warfare

Mini Weapons of Mass Destruction: Build and Master Ninja Weapons

Mini Weapons of Mass Destruction Targets: 100+ Tear-Out Targets, Plus 5 New Mini Weapons

Backyard Ballistics: Build Potato Cannons, Paper Match Rockets, Cincinnati Fire Kites, Tennis Ball Mortars, and More Dynamite Devices

Rubber Band Engineer: Build Slingshot Powered Rockets, Rubber Band Rifles, Unconventional Catapults, and More Guerrilla Gadgets from Household Hardware

Junk Drawer Physics: 50 Awesome Experiments That Don't Cost a Thing (Junk Drawer Science)

The Book of Totally Irresponsible Science: 64 Daring Experiments for Young Scientists

Sneaky Uses for Everyday Things (Volume 1)

The Big Book of Catapult and Trebuchet Plans!