Foam Proton Pack

I needed a lightweight pack built quickly. My solution was insulation foam. It's easy to cut and sand.

I did one foam pack at 50% scale for my son, and a true scale pack for my wife.

The mini-pack.

No Job is Too Big - A Proton Pack Build

No Ghostbusters costume would be complete without a proton pack build.
I have a month to build the pack, finish the rest of my costume, and finish my son's costume.
I'm cutting it a bit short and will have to shortcut some details (which I will fix after Halloween).

The pack on Halloween.

The wand on Halloween.