Cubes are versatile - they can sit on the floor of the cage or hang from the cage ceiling like a hammock, the rats can hang out inside the cube like a hut, or lounge on the top of the cube like a small hammock. Cubes are square, but variations of the cube include a rectangular version and a triangular pyramid. With a little creativity, they can be designed to look like a gingerbread house, a haunted house, an army tent, a treasure chest, etc.
|Cube with Built-in Back Door|
If you make your own hammocks, we have found that tracing a container of Morton's salt makes for the perfectly-sized entrance hole. Tutorials describing how to make cubes, pyramids, and other hammocks can be found at Ratropolis' Rat Hammock Tutorials page.