I dunno... Cats have that soothing 'purr' feature.
Want a cat? You can have our senile cat, our masochist cat, or our cat-larger-than-a-small-pony cat.
No Jen... You can't give away the family cats. I have my own ergonomic kitty, who has all the features you describe in yours, all in one.
Dad would be willing to pay shipping for them...
Wow, that cat looks almost as fat as our round mound of fur.