What is something that represents human diversity?

Question

I need like a physical object or just some ideas that would show it.

Answer 1

An arrowhead and bullet casing which would represent the diversity of humans' capacity for violence (or ability to protect and feed themselves, however you choose to look at it) over time.

Actually simply finding a man-made object, that contrasts with another man-made object would do the trick.

Answer 2

skin color

spears vs guns

stone and wood vs metal

physical makeup (height, etc)

Answer 3

people. art.  

Answer 4

Watch some p**n.