Did you know that the best cat toy in the world is a set of vertical blinds? (Yes, I have vertical blinds. Don't judge me. They came with the house. I kind of like them now. Am thinking of getting brown suede ones.)
Anyway, the cats love them. They get to indulge in one of their favourite hobbies of staring out the window (and, in Bellus' case, chirruping in frustration at his inability to get out there and chase stuff) and at the same time play fight something dangly and rattle-y.
Well done to XUP, by the way, for identifying the source of the catty names. 'Fess up, now: did you Google it?