Answer:
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!
What gets broken without being held?
I get dirty when wiping things clean. What am I?
What's the capital of France?
The more you have me, the less you see. Shine a light on me and I flee. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.