Build a dome home for your cat! Gather cereal boxes and pieces of thick cardboard. Cut the cereal boxes into triangles with flaps and cut the thick cardboard into squares with flaps. Bend each of the flaps into place, glue the flaps together and use clothespins or binder clips to hold the flaps together while the glue dries. Continue gluing flaps until the house is complete, paint or decorate the house and place a pillow or round cat bed inside the hide.