How to Make a Child's Marshmallow Gun

Cut four 3-inch pieces of PVC from your 10-foot piece with a hacksaw. Cut two 5-inch pieces and one 7-inch piece in the same fashion. Use a piece of sandpaper or a razor knife to clean the cut ends of the PVC.

Place an elbow on the end of one of the 5-inch pieces of PVC. Insert one of the 3-inch pieces into the other side of the elbow. Attach a T to the opposite end of the 3-inch piece so that the two open ends of the T are running parallel to the 5 inch piece. Note that the 5-inch piece is the top of the gun, where you will be blowing into to project the marshmallow.

Insert another 3-inch piece of PVC on one open side of the T, so that it is running parallel below the 5-inch piece. Attach an elbow to the end of this 3-inch piece, pointing perpendicular and down away from the 5-inch piece. Add a 3-inch piece out of that elbow with a cap on the bottom. You have now assembled the blow piece and the rear handle.

Insert the second 5-inch piece of PVC from the still open end of the T. At the end of that 5-inch piece, put on the other T so that the middle leg of the T is pointing down in line with the rear handle. A 3-inch piece will insert into that opening, with a cap on the end of it, to form the front handle.

Insert the 7-inch piece of PVC in the remaining opening of the T. The 7-inch piece is the barrel of the marshmallow gun.

Load a small marshmallow into the "blowing" end of the gun. Take a deep breath and blow into the mouth piece to shoot the marshmallow out through the barrel.