I think they are super cute myself also.

I see them in catalog's a lot and for a pretty good price too!
I am alway's thinking it would be cool to have one in our backyard also with maybe one lil GF in there or something?-But then I wonder what happen's when it rain's a lot in the summer months, It would overflow woulden't it?
We have a pretty good sized air compressor in the garage that hubby uses for car work so I think blowing up a good sized one would be pretty fast. Otherwise smaller compressor's are pretty cheap at Wally World.
I'm not sure how to keep the cat's out of it though, I think Justin's idea of the chicken wire sounds pretty novel though.
Let us know if you get one, I'd be intrested to know how it go's.