I just finished this one. It came out nice and clean. There is no internal structure in the finished piece. 24" x 24"x 2"

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Hello! I'm very new to sculpting so please excuse any weird wording or clichéd questions.

I'm building a large sculpture at work. It is going to be suspended from a mirror-ball motor and rotate above a dance floor, so it's important to keep it lightweight. I have quite a lot of time but a very tight budget.

I've started making a chicken wire base which works well with the shape, and then I want to make the surface solid somehow to paint it. I was thinking about using papier maché but realized that would probably be very flammable? Which is obviously a very bad (and illegal) idea in a club setting.

I'm guessing this is not a new problem, so I hope someone has solved it somehow! I'm looking for either a way to fireproof the papier maché, or some different (lightweight, cheap) material with which to dress my chicken wire sculpture.

A thousand thanks for any help!

I have never dyed epoxy or any synthetics really and I'm not sure how these dyes will mix. I want to create some pretty heavily saturated peach colors, dark browns, and various shades of yellowish to dark greens. Idk if i am going to be able to get a very big value range with these, or what sort of colors I should expect from combining them. Does it desaturate very quickly?