Said it so many times now and I will continue to say it each and every single time it is brought up:
Two massively stacked guys with unusual haircuts with fucking spikes on their shoulders.
Two fat guys, one clearly middle aged, in KISS-tribute face paint, bondage gear and occasionally gimp masks.
I've never ever ever ever understood the ideas that the Demos were Road Warriors rip offs. Powers of Pain, sure, they look exactly the same, but Demolition don't even slightly resemble them. Whoever made the Goldberg / Austin comparison was wrong, because those two look pretty similar.
Last time this came up I got involved in a long dispute over my dislike of Demolition and their limited moveset, so I'll bail on it this time. Suffice it to say, my view hasn't changed -- but I do acknowledge they had a handful of good matches by WWF standards.