Proto Man has an arm cannon just like Mega Man. It doesn’t work quite the same way, and the Proto Buster consumes more energy but it still does the job. And in this instance, it accompanies an extra cute costume. Instructables user craineium made the ensemble for his oldest son. It was a lengthy process, but he documented everything from the helmet to the Proto Buster. He fashioned the cannon from a plastic thermal mug and incorporated several yellow and green LEDs. Here’s some information on how he built the shell for the weapon:
Body:
Starting with the mug, I saw off the top (which frees it from its inner lining. Then using a dremel I cut out the bottom, leaving a lip for the next container to attach to. Then I saw off the handle and smooth everything off. I take the handle and cut off the curved parts and one side of the handle (length wise so a cross section looks like a “C” and not an “H”). Using a dremel and the handle as a guide, I cut a window in the body for the LEDs.
For the bottom of the body, I use the curved scissors and cut out the 2 cup rubbermaid container. For the top of the body. I use a dremel to cut a heavier plastic bowl (it was the only thing I could find that was the right shape and size). I then used the palm sander to get this to fit better.
Tip:
I take two kids plastic containers (I forget the brand, but they come in multiple colors and have animals etched into the side). There were two yellow bowls in the pack, so I use these. Using a marker, I mark where I want to cut. The curved scissors do the cutting (they really are needed for cutting these bowls). I then sand one of them down for the window cover, and the other I cut windows into for each of the 5 LEDs
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