I am working on making some helmets, they're still a bit away from completion. They have these side pieces that are made of cardboard covered in craft foam. They look very clean except for the edges where you can see the cardboard sticking through:
What should I use to smoothly cover these sides? They aren't perfectly straight (some of them are diagonal and all that due to slight differences in piece sizes), but all I care about is covering the nasty cardboard looking edges, I don't think the slight angles will be noticeable as long as I use a thin material.
I was thinking about just using strips of paper and sealing them over with modge podge
But is there a better material you would recommend? I was wondering if some kind of non-bake clay would be good. Or if there is something I could paint on there that will cover them and look smooth.
I was considering using bondo for the edges but that sounds like it would be unnecessarily complicated and I want to keep the side pieces as light as possible.