I was doing an assignment for a physics class today about the laws of reflection. In doing research for it, I came across this toy that I had seen years ago. It is essentially a pair of parabolic mirrors that allow you to place a small object inside & have a mirror image of it reflected above the enclosure.

Unfortunately, it's a very tiny toy. I was wondering if anybody would have an idea of how to build your own that could be used for larger objects? I'm not looking to build a massive one, just something you could fit something like a shoe or a pair of headphones in.

I thought this would be a neat thing to have, but I'd have no idea where to start looking for materials, or how to put them together. Any help would be greatly appreciated!