Empty Collars

There are three kinds of empty cat collars in this world.
All those collars at the pet store. So hard to choose. Will it look good? Does it have a bell? Is it a safe collar for them to wear if they get tangled in something? How long will they take to get used to it?
Sometimes, a collar wears out. Or it breaks. They just get thrown out with the rest of the garbage. Once again, you buy another.
But every now and then, an empty collar means something else:
A dear, beloved friend is gone.
Those, you keep.