To keep from scratching the pipe I pulled an old sock over the whole length of pipe as padding. It is not as easy as you might think to pull two wrenches in opposite directions without twisting them in other directions at the same time. In this case the pipe started to unscrew from the wall before there was any movement of the shower head connector.
It might seem like a lot of work, but it only takes a few dollars and a little bit of time. You don't need to be skilled at plumbing either, as this guide just taps into your preexisting shower head connection. Other than the PVC pipe, caps and ends, you only need a drill to create the holes. If you have a clunky shower head, this is a great DIY solution to a usually expensive replacement. Find the full guide over on Instructables.