Wall mounting a flat panel onto a pole?  

Hi. I'm looking for a wall mount that would be able to connect to a pole, about 8" thick. Rather than hang the tv from the ceiling, I'd like to see if I could mount it off of exposed plumbing pole....thing. I've looked at peerless and sanus but don't see anything. Anyone ever see this before? Is it a bad idea? I suppose there'd need to be anchors or something to keep the tv from sliding to the floor. Thanks