Little M has a new, beloved toy. One of those giant elastic bands, that you get bound around a lot of post. He has a plethora of toys, sourced from far and wide.
He brings it to me, I ping it, then he tosses it about for a bit before bringing it back for me to ping. I've woken up for the last week with it in the bed.
He doesn't chew it, so I have no fears about him ingesting it. He's just become incredibly attached to it. Then he pretends he can't find it, making mournful "Oooo" noises until I fetch it. Even though he knows exactly where his "Ping" is. 
Anyone else have a cat with favourite toys, that aren't actual toys?