Sion legendary skin ideas?

Cmon people lets get going on this, what would you like to see. Personally Choo Choo train sion or conducter sion would be the best skin in my idea. when he ulti's instead of his roar, a train whistle sounds a suddenly he hops on a train, leaving a trail of steam behind. he has a giant shovel or tong for the coal on the train and his shield looks pitch black. Thoughts?