What's a cool way to do a model of Sputnik 1?

[Cloud Strife]

I was thinking of using some aluminom foil but I'm not sure. I really want it to look like a model of the Sputnik 1, like the same way those Russian scientists did. Also, a question.

This is when Sputnik 1 is closed.

And this is the inside of Sputnik 1 when it opens up?

[Rhiannon]

I might use shaped & painted styrofoam for that kind of project, if I wasn't going to actually just beat out some tin sheets for it.