What would be a great theme for a Diorama project for Art Appreciation Class?

Question:

What would be a great theme for a Diorama project for Art Appreciation Class?

I am supposed to do a Diorama for my Art Appreciation Class as our Final project. It's worth 35% of my grade and I need help with ideas. I just need suggestions, what material to use, and if there are any websites that can possibly help me. Thanks so much!

Best Answer - Chosen by Asker:

I think it would be neat to try to turn a famoust painting (which is 2d) into a 3d peice of art. It would be an interesting concept and you could really use whatever materials would give you the best look.