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!
My first part compliments people. My second part makes things known. My third part hurts feelings. My fourth part may hold a precious treasure. My fifth part is used when sharing fancy beverages.
I describe a toilet cleaner as well as one of Santa's reindeer
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
I save lives on the ground and in the air
hey are producers of pies and burgers and are great for tipping.