For Tybalt, everything is a cat toy. He'll push and chase toy mice around the floor, but he seems to prefer to do the same with things like binder clips and floss picks, the latter of which he digs out of the bag they come in and spreads around the room.
But better than self-playing toys he has to initiate playing with, he likes toys that require human intervention, and he'll sit around meowing piteously until you play with him. And of these, his favorites are plush critters on a stick. A plush toy, in the shape of a fish or bird, is attached to a string, and the string is on a short pole, so it looks a bit like a fishing rod. I flick the rod so the plush toy lands somewhere, Tybalt stares and wiggles at it from a distance and then makes a dash, and I usually flick the toy up and move it somewhere else, repeat process. Sometimes he'll take a mighty leap into the air as the toy goes up.
His favorite of these had a fairly short string, and the plush was in the form of an ornamental goldfish. (We also have one made of yarn in the shape of a jellyfish.) The string was fairly short on the goldfish one, so its movements were easily controllable.
Unfortunately, eventually he pulled the toy off the string.
I thought he'd liked the goldfish toy. Not as much as he likes the string. I wiggle the string around on the floor and he goes frantic, splaying his claws out everywhere in an attempt to catch the thing. Even when he does, it usually slips out easily from between his claws. But every once in a while, he does catch it. Then he puts the string in his mouth, from which it cannot easily be slipped out. So at that point I just drop the pole, and he trots off, carrying the string, pole dangling behind him, and takes the toy always to the same place, which is the floor by one side of our bed. There he leaves it.
What his plan is, I don't know, but he definitely has one.