They might not deter criminals or zombies, but marshmallow guns are certainly adept at scaring away summer boredom.
With less than $5, you can acquire everything you need for one gun and a whole bag full of ammo...er, mini-marshmallows.
For serious marshmallow artillery, go to the plumbing section of your local hardware store and purchase 22 inches of ½ inch PVC pipe. Youll want this cut into one 7-inch length, three 2-inch lengths and three 3-inch lengths -- you can do this at home using a basic hacksaw, but the store may be equipped to do the cutting for you. Youll also need two elbow connectors, two T-connectors and two end caps, all in ½ inch sizing. Spray paint and permanent markers are optional for decoration.
Assembling the gun is as simple as pushing the pieces together and because theres no glue that needs to dry, you can begin using it right away. Should you want to pretty-up your new gun or distinguish it from others, you can use spray paint and/or permanent markers.
To use the gun, just place a mini-marshmallow in the mouthpiece and blow; the white food stuff will exit the pipe with a flump -- giggles may soon follow.