Here's one I found, not sure if it's the same one mentioned earlier, but I just did a search for Animated Motormaster in the customs forum: http://www.tfw2005.com/boards/radicons-customs/209550-animated-motormaster-updated.html
Thanks didnt get anything when I put in animated ultra magnus. I have one I am looking to do something with but not sure what. So I was looking for inspiration.