Things You'll Need
Instructions
Take the 8-inch PVC piece and attach it to one of the two horizontal ends of a T-shaped connector. Put 5-inch pieces on the other two ends of the T-shaped connector. Put a cap on the end of one of these 5-inch pieces.
Now add another T-shaped connector to the uncapped 5-inch piece with the T part facing the opposite direction of the first (so it looks like an upside-down T).
Insert a 5-inch piece into the other two openings of the connector.
Add an elbow connector to both pieces of pipe you just put in. The elbow connector on the vertical pipe should be facing away from the 8-inch barrel piece. The elbow connector on the horizontal piece should face down.
Add the remaining two 5-inch pieces in the elbow connectors and put a cap on the vertical one.
Decorate your gun with permanent markers, stickers, tape or paint, if desired.
To shoot the gun, put a marshmallow in the uncapped opening at the top of the gun (the barrel is the 8-inch piece), take a deep breath and then blow. The marshmallow will shoot out of the barrel. You can load 2 to 6 marshmallows at a time for a shot that spreads.