Titan-Forge has some concept art up of their massive Infernal Golem of Kashan Vra over in their Metal Beards Kickstarter campaign.
From the update:
It’s a big one. Literally! Infernal Golem of Kashan Vra is here and he is ready to rumble. As you can see from a Concept Art below, he is one badass monster. And he will be huge. Throne of Death size, or even bigger! And he has a chain beard. Can you feel it? Massive chain beard, how cool is that?