i take my inspiration from South Park.
perhaps you could invest in some fleas. then you could put them in a evolutionary acceleration tank and use time-lapse photography to show how these quite simple fleas evolve into societies, cultures, perform social acts (like concerts) and also partake in war.
then you could meddle a bit and cause an interstellar (i.e. other side of tank) war between the two religious cults the fleas split into (the believers in The One APN vs those who don't believe) ans demonstrate the effects of a mini-nuclear war.
this would be ideal as it could be used to show all walks of life. fleas who made it (raja fleas) and fleas who didnt (tramp fleas on the streets). fleas who died too young and fleas who had homosexual marriages
or alternatively you could use bacteria and a microscope...?