Thanks for the responses guys.
AbsolutFaye- I actually got them from one of our LFS here in Okinawa, Japan. For that rock and a rock the same size with bright green zoas I paid 500 yen or about $7. The owner doesnt speak much english and I kinda figured since they were in the same tank as her zoas, that they were button polyps LOL. I think i'll keep them for a bit and keep an eye on them. They do look pretty awesome under my blues and lunar LEDs.