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!
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
I am the home for feathery animals.
I am slim and tall many find me desirable and appealing they touch me and I give a false good feeling once I shine in splendor but only once and then no more for many I am to die for.
I am rubber you can eat!
When is it bad luck to see a black cat?