rhinoctopus

Rhinoctopus has horns for arms, 
and one more on its head for style. 
It snakes those hard horns everywhere 
- you wouldn't think they're versatile!
They're hardly supple, flexible - 
One wouldn't call them tentacles. 
Rhinoctopus don't give a shit. 
Them eight hard horns slip  
in like bulls, and rearrange 
your china shop. You'd think 
a stampede came through here! 
And then you spot rhinoctopus.
The picture suddenly comes clear.