Laura, that is awesome!

I want something else for my guys and my dad and husband are willing to build it (it would be good for my dad to have something to do) but I can't come up with a design. I want something that is large enough for 18 pound Ripley to be able to be on each level and I only want it to be 4 foot or under in height and at least 2 levels plus the base. Do you and Mike have any designs like that you would care to share?