: Safety scissors or hobby knives, pliers, and markers. Safety Emphasis
: This section includes small-scale projects like rubber band launchers and various tools designed to propel lightweight items like cotton swabs or paper scraps. Mini Weapons of Mass Destruction 2: Build a Sec...
: Instructions are provided for building simple optical and acoustic devices, such as a periscope made from a toothpaste box or a sound-amplifying cone from a plastic bottle. : Safety scissors or hobby knives, pliers, and markers