Answer:
I can be entertaining until you realize some pieces have been lost.
I save lives on the ground and in the air
I flow from the Homerβs mouth when he sees doughnuts.
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
If you can spot one of these eastern warriors, it means they're not doing their job right.