I found this in a collection of children’s poems by Jan Dean called Wallpapering the Cat:

Cat

My bones are rubber jelly
I leap but never fall
I lie like a long fur collar
On the shoulders of the wall.
My eyes are ancient jewels
Like gems from Pharoah’s tomb
Even when you think I’m sleeping
I monitor the room.
My soul is grey and misty
Shadowy… Secret… Free…
I rise like smoke, escape and go
No one possesses me.