My 3 year old neutered female cat has gone mental on playing with silicone earplugs. They are small chewy yellow things you put in your ear to block sound.
My cat thinks they are THE BEST THING EVER.
If I have one in my hand, she mews, jumps and slap it out of my hand. When I give her one, she plays for hours and hours until collapsing of exhaust. There are probably a thousand of them under the bed and various places she slaps them into then attempting to grab them, pushes them deeper. Cats, go figure...
The problem is that she won't play with any of her other toys. Ignores catnip and catnip toys. Got her one of those ball in tunnel with holes to poke around. Nothing.
If she doesn't get an earplug, she will mew, act depressed and sometimes get anxiety and be aggressive.
I don't want my little darling to get depressed but I fear she may swallow and choke or eat and get an intestine blockage or something of the sorts.