Kittens in the box. Games of kittens.
Kittens play funny in the box with each other. They are fun to drive and, interestingly, do it in complete silence. Basia and Busya we have silent kittens. We were even afraid from the start that they were dumb. But, fortunately, we were wrong. They just meow only when they need something. They are such small, silent, fluffy hooligans.