I while ago I found an old, old picture on a website that was of an appaloosa hooked up to and dragging some huge thing, I think it was an old fire engine or something. It was an amazing photo and now I can't find it! I saw it on an Appaloosa ranch website I think, and I think that website was one of these here- http://www.southerncricket.com/advertisers/. But you may have seen it other places too.
I hope someone's seen it,