So, there's a new joke companion available for 1000 gold/200 gems in the Store.
It's the pet rock again, but now with an evil goatee, and it's called Dastardly Dwayne.
See it in all its glory: https://imgur.com/1JmCW8X
This version of Dwayne's a bit more dastardly than expected, and he should be sticking around for a couple days