Anyone know where to get Bathroom acrylic paneling?

[Drew Dowdell]

I stayed at a fairly new Springhill Suites in Denver a few weeks ago and being in this business, I always take note of the fixtures.  The bathroom walls were done in what looked like tile, but cop a quick feel and you'll find that it is actually some sort of plastic paneling. I thought it actually looked really nice and fairly upscale for not actually being tile.  I am trying to locate a source for it.

Here is my dilema. I need to move quickly and cheaply on a bathroom renovation for a rental unit. I had originally planned to go a little more upscale and use actual tile, but time and budget are running thinner than I had hoped.  

A normal tub surround generally will not work because 1) the walls are a really weird height and any tub surround ends up looking too short. 2) There is an exterior window in the shower on the long side of the tub (it seems to be a Pittsburgh thing to do this). 3) The window is tall enough that it means I can't really drop the ceiling down either. 

Since the bathroom is a total gut, I just wanted to get this paneling I saw at the hotel and have my contractor do all the walls with it. So far my local big box stores are a bust. Does anyone have a lead on a material like this?