In this how to video, you will learn how to make a marshmallow gun. You will need a 1/2 inch PVC pipes, PVC caps, T poles, L poles, and marshmallows. Connect the long pipes to the sides of the T pole. Connect a shorter pipe to the bottom and place a cap on it. Stick a marshmallow on one end and then blow on the same end. It should shoot out once you blow out. However, there is a more powerful version. To build this, connect two small pipes with caps to the sides of a T pole. Connect short pipe at the top and another T pole on top of it. Connect two long pipes to both sides of this T pole. At the end of one pole, connect an L pole and a short pole. Connect another L pole and a short pole to this pipe. Your more powerful marshmallow gun is now ready for use, which can load up to three marshmallows.