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You are probably already familiar with the PVC pipe marshmallow shooter, a classic, fun weekend project. Maybe you already have one. Next time you show up for some gooey, air-powered confectionary warfare, why not come packing some classy heat — the Deluxe Copper Mini Marshmallow Shooter Mk. II!

You’ll build it from lengths of copper pipe and standard fittings. The Dremel Multi-Max will cut your 1/2″ dia. pipe to length with ease, so no more laboring over a hacksaw. Finally, you’ll need some basic pipe soldering skills to put it all together.



Dremel Multi-Max oscillating tool and 3/4″ wood/metal flush cut blade. You could also use the Multi-Max MM462 Wood-Metal flush cut blade (1 1/8″ wide).
Copper plumbing pipe (1) 2′ length of 1/2″ internal diameter
1/2″ copper pipe elbows (2)
1/2″ copper end caps (2)
1/2″ copper T joints (2)
Metal files
Bench vise
Propane torch
Lead-free pipe solder and flux
Emery paper
Safety goggles

Threaded copper 1/2″ MIP adapter (1), and threaded copper 1/2″ female adapter (1) for unscrewing the barrel
Tape or a latex glove tip for protecting the mouth piece

MAKE_DownloadPDF_icon.gifDownload the Project PDF
(Right click to save the PDF to your desktop.)

John Edgar Park

John Edgar Park likes to make things and tell people about it. He works in CG animation at DisneyToon Studios and writes for Make, Boing Boing, and other places online and in print. You can find him at and twitter @johnedgarpark — if you like that sort of thing.

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