The best cat toy ever

So J&K sent us a lovely and nifty housewarming gift. We love it, but Mouse isn't impressed. She's far more interested in the packaging that it came in, which it turns out is the best toy ever. She's taken to nesting in it. Here's a few pix and a video (I warn you, it's rather silly).

There's a cat in here somewhere...

ah, there's the camo kitty!

What's in the box?