I would like to see a model of this flat earth in proportional scales. Only to make a few observations about the sun light. Anyone knows how can i find some 3D models that fits well?

Only to explain why: I can make a simple observation of the spherical earth model with a ball and a lantern, to see how works day and night. To do the same thing in flat earth model, i think that is more complex, hardly to make a experiment with real objects. I need to observe in a 3D software.

I'm a believer of spherical earth, but i'm trying to understand how things could work in flat earth. I need some experimental proof. Can you help me? (a simple handly experiments could help too)

Let's do some Science!