My cat has done this. He has several toys and he has taken them away and hidden them somewhere. Despite a lot of searching I can’t find them. I don’t believe they are in the apartment any more. My current belief is that he has thrown them away not by intention but by accident because I believe he has put them in the rubbish bag, which I have thrown out.

I don’t actually have a rubbish bin. I use a big black bag to put rubbish in which is in the kitchen. He has access, therefore, to it. This is the only solution I have because I’ve been through the apartment with a fine tooth comb.
Not only has he apparently thrown away quite a few cat toys, he has also thrown away a little plush toy that my girlfriend bought me. It is a snow leopard and was part of a fund-raising exercise which she bought me as a Christmas present. That disappeared soon after I placed it on my desk. It was quite a reasonable size and appears to have been hauled away as prey and hidden in the big black plastic waste bag.
Has your cat hidden objects so thoroughly that he never found them again? I am going to buy some more toys and I’m going to buy a bin with a lid on to put the waste bag in. In this way, if I’m correct, my cat will no longer be able to inadvertently throwaway the cat toys that I buy for him.
We know what he’s doing. He’s treating the toys as prey and taking them back to his den. He is hiding them so that he can feed on them another day. Or perhaps he is much smarter than that? Perhaps he’s throwing them away because he’s bored with them! Wouldn’t it be funny if he was doing that? That is a bit of fun but I am astonished I can’t find them.

Jasper steals Lauras glasses from the bathroom counter. I’ve seen him take them and run and have to chase him because he hides them. He also hides his kitchen hockey milk jug caps under the sofa. And a catnip mouse has been known to diasppear and reappear.
Makes me remember my Birman who had a thing about gold, used to steal earings and rings and hide them, some of the earings never turned up again, he may have had a “fence” somewhere.
Looking around this room I know there are 12 fluffy mice somewhere, I can’t spot one of them. Scarily like “Toy Story”.
Damon is the only cat here that does that sort of thing and more. He’s a thief, a hider, and a hoarder. Anything and everything is up for grabs… toys, socks, keys, bank cards, toothbrushes, hair ties, on and on.
It’s pretty much his career.
I don’t buy a lot of toys for my cat, mostly inter-active toys, like birds on a string. But I did buy a soft, catnip filled mouse, which she seemed to enjoy. I usually saw it laying around, but at one point, I couldn’t find it, after looking everywhere for a couple of weeks. So, I bought another one, thinking maybe my roommate had taken it for her cat.
One morning I woke up to find both of them side by side! Another feline mystery….
So Funny . You may never find them. My cats kick theirs under the cabinets or couch . discovered when I vacuum the house.
Younger cats do this more , as they are practicing their hunter vs gatherer skills.
Indoor cats are waiting for you to find them and throw them back for a one on one cat and mouse game [ which is what their mothers did with them ; difference being the prey was still partially alive and ready for action ! Have you checked the closet ?
Good Luck Michael_
Eva_