Up next in How to Do Fun Tech & Science Projects (52 videos)
Teach your children technical skills and science in fun ways with the tech and science projects in this Howcast video series.
You Will Need
- Measuring tape
- 2 feet of ½-inch internal diameter PVC pipe
- A marker
- PVC-pipe cutters
- Two elbows
- Two end caps
- Two T-connectors
- Mini marshmallows
- Safety goggles
- A hacksaw (optional)
Steps
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Always wear eye protection when using the marshmallow gun and never aim at anyone's face.
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Step 1
Cut the pipe
Measure, mark, and cut the pipe into one 1-inch segment, five 3-inch segments, and one 7-inch segment.
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Use a hacksaw if you don't have PVC-pipe cutters.
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Step 2
Assemble the handle
To build the handle, put a cap on a 3-inch piece followed by an elbow and another 3-inch piece.
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Step 3
Build the mouthpiece
For the mouthpiece, put the one-inch piece in the bottom of the T-connector. Connect an elbow to the other side of the piece, followed by a 3-inch segment. Attach one end of the T-connector to the 3-inch piece from the handle.
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Step 4
Build the barrel
On the remaining end of the T-connector, put a 3-inch piece and another T. A 3-inch piece with a cap goes in the bottom of the T, and the 7-inch piece goes in the third T opening to serve as the barrel of the gun.
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Make sure that the pieces are pushed together tightly. Friction holds the gun together, and maintaining air pressure is critical to shooting the sugary ammo.
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Step 5
Shoot the gun
Go shooting! Put on eye protection, point the gun in a safe direction, and load a mini-marshmallow into the mouthpiece. Wrap your lips around the mouthpiece and blow to give the gun a quick burst of air. Pow!
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The marshmallow capital of the world is Ligonier, Indiana.
