Fire Ox

 

If birds are too subtle, you can also use a huge, thundering fire-ox, such as the one depicted here. In this case, the fire is used less as an incendiary than as a motivator. You fit your ox with spears and then affix straw soaked in oil to his or her tail. After it's set alight, the ox will charge madly toward the enemy.

Not good enough? Choose another:

 

Firebird

Fire Sparrows

Exploding Fire Ox