The idea that ever mini needs to be an exact representation of what it stands or is a head scratcher.
Minis, paper chits, dice, jelly beans, coins, pop cans, etc all serve the purpose of clarifying the scene and the make the mechanics easier to use.
Who cares if you use a black dragon to represent a red dragon?
Or one of your kids pokemon toys?
Or a pack of cigarettes?
It's cool to have an exact representation of a thing, but hardly necessary.
And in point of fact, its going to be plenty hard to ever have an exact representation anyway.
If one of my players ever complained "You said the orc raiders have axes but those minis have spears! Not cool!" I'd slap the Cheetos out of their mouth.