Hello, ID please

[Firepony]

I got this at the store the other day, they tried telling me it was an acan lolol. Anyway, ID please sorry for my crappy phone pics. I'm thinking of mounting some to my back glass...ideas on this? I want something that stays short on my glass, not like GSP that can reach 2ish inches long. I thought of zoas...???
(Cross posted)

 

[blaxsun]

Possibly a flowerpot or polyp? Can't tell from the image whether it has a skeleton or if that's the frag plug, and it's partially closed up. Definitely not an acan (sorry if you were hoping for an acan).