Not sure what either of these are called, but I like them so much I want to get some more Zoas.
Edit: The first ones are rather small polyped but with large growth rates. The colony was obtained in May and has almost tripled in size. I need to frag it out soon as they have decided to grow into my anemone.
The second one was a hitcher into my Mantis tank. It was less than 1/4" in diameter, and is now more than 1/2". It seems to be solitary, though, as there hasn't been any babies yet.