Big Worm landed himself on our doorstep about 9 years ago. He was skin and bones, full of fleas and, you guessed it, full of worms. He’s all healthy and neutered and stuff now, but rarely allows photos. He’s an outdoor cat and we built him a heated cat box that sits on the front porch. The box is made out of a thick Styrofoam fish cooler with the lid screwed on and a hole cut in the side just big enough for Worm to crawl through. We then cut some laminate floor padding in strips to hang over the door to keep the drafts out, threw in a heated blanket and a fleece cover. He uses it all the time in the winter.