Amy Spintman of Cats & Rabbits & More (http://www.catsandrabbitsandmore.com/products) created the Cottontail Cottage and regularly donates this wonderful playhouse to shelters and rescue groups around the country. (Many other bunny sites carry this as well.)

All three of my rabbits have LOVED this! The first two had great fun running up and down the ramps, peeking out the windows, and chilling out "at the penthouse" or on the ground floor of this snuggly hidey spot. My current bunny, Poppy, loves to play hide-and-seek with me through the doors and windows. This is a fantastic product, and my cats like to run up and down it, too.

As I mentioned in the "Pros" section, the internal floor ramp/pieces can be purchased separately if they start getting a bit worn, and a ramp can be added for rabbits to run into the Cottage from the floor through a second level window.

Pros: It encourages exercise, bunnies obviously enjoy themselves, floor/ramp pieces can easily be replaced, external ramp available

Cons: The ramp accessory works well for bunnies only, not cats