I have 2 cats, Zoe and Chloe, who both love boxes. If the box is open, they are inside it immediately. If it's not, they'll just camp out on top of it. I know I have a lot of pictures of them with various boxes, but I could only find one. There's one room that has a set of shelves with boxes with handles for drawers instead of having a dresser. One of the boxes was left slightly pulled out and I found Zoe had jumped in and was just hanging out there. She stayed there quite a while.
Tasks for St. Stephen’s Day/Boxing Day: Show us your boxes of books! –OR– If you have a cat, post a picture of your cat in a box. (your dog in a box works too, if your dog likes boxes -- we're looking at you WhiskeyintheJar) -- or any pet good-natured enough to pose in a box long enough for you to snap a picture.