How could a Christmas cat toy be dangerous?

This is important enough to remind everyone to beware of this dangerous Christmas  cat toy:

It’s always fun to give your
cat new toys, especially as Christmas gifts. But not all toys are
created equal, in fact some toys are dangerous for your cat
although they are sold for cats. For example, this prepackaged
Christmas cat toy stocking contains an especially dangerous toy.
This green spiky thing is like giving your cat shredded ribbon: and
if a cat ingests ribbon, string, that sort of thing, it is very
serious.
This particular toy sheds:

I immediately threw this toy away.

Happy New Year
for all 2 and 4 legged creatures (and if you have fins, too)!