Okay. So I've got the structure of the Galvatron costume done. Still got some detailing do, but the hard bit is over with! HOWEVER. I've run into a bit of a logistical problem.
Since I don't have an icon of Galvatron on IJ, I'd like you all to go look him up on Google Images. Specifically, Galvatron's cannon. I'll wait.
Notice how it was jutting out straight from Galvatron's forearm? Yeah, that's because it is made of metal. Now building things with metal presents its own set of problems, but I will say this for it: you tell it to be a shape, and barring natural disasters or superheroes with something to prove, it stays that shape.
My Galvatron's cannon? Like the rest of him, it is made out of Fun Foam. I chose Fun Foam because it was light and easy to work with, but like metal, it has its own problems, and this became apparent when I examined the finished cannon. It does not stay rigid. In fact, it is rather flaccid. Limp, even. It droops from my forearm piece, and then the whole piece sort of rotates around so it's hanging upside-down from my arm.
CLEARLY THIS IS A PROBLEM.
So. I need something LIGHT and RIGID to help Galvatron out with his Little Problem. I have had chicken wire and dowels suggested on Twitter - any other ideas from the engineers in the audience?
(If all else fails, there's always Viagra.)