ACK! My circumspect request finally worked!
I had no idea that the
dark red text was so good at hypnotising!
Here's
the Hobbit reference, simply because I like quoting Tolkien when I can and have an excuse to:
Bilbo had never seen or imagined anything of the kind. They were high up in a narrow place, with a dreadful fall into a dim valley at one side of them. They were sheltering under a hanging rock for the night, and he lay beneath a blanket and shook from head to toe. When he peeped out in the lightning-flashes, he saw that across the valley the stone-giants were out and hurling rocks at one another for a game, and catching them, and tossing them down into the darkness where they smashed among the trees far below, or splintered into little bits with a bang. Then came a wind and a rain, and the wind whipped the rain and the hail about in every direction, so that an overhanging rock was no protection at all. Soon they were getting drenched and their ponies were standing with their heads down and their tails between their legs, and some of them were whinnying with fright. They could hear the giants guffawing and shouting all over the mountainsides. (Chapter 4, my emphasis.)
Uh yeah, the request might be for the mod, but it's more of one of my "pets" than a unit we the community of LotM all know we need.
My envisioned use for it had been for on non-random maps with pre-placed units (such as a map of Middle-Earth, eh), which is
not what we are modding first. The LotM will first come out as only a random map mod, so its unlikely this unit will be officially used for quite a while. Plus, I had imagined it being an immobile unit with bombard, so it would sit still in the Misty Mountains and throw boulders at passers by. But apparently the AI won't do that, so I have to think of something else. Point being, I love this unit but it's not clear that anybody else will or even that it will show up in tLotM anytime soon. So long as you know what you're getting into...
So what is a stone-giant? Not certain, but I've always figured they'd be "enormous human-like creatures." I don't think they look like animated rocks. For example, stone trolls don't (although they do turn into stone in sunlight), and cave trolls don't look like caves. So I guess that stone giants aren't called that because they look stoney, but perhaps because of their location (the mountains) or their habits (throwing stones).
So maybe a big, really big lumbering human with a shaggy beard and shaggy hair and, hey, maybe lots of body hair, and dirty & ripped pants like on your example (I wonder where giants get their tailoring done? Maybe they just skin an entire cow or two?!?), I don't know if they'd be muscular or fat, maybe they'd have a tan (or sunburn) cuz they're outside in the elements all the time...sheesh, I dunno!
Heck, how about this: give your existing example some human skin (whatever colour you like) and a bunch of hair (I'd prefer dark, but that's just me), and that should do it.
I love the overhead throw idea, as in your example. Picking up boulders off the ground and throwing them overhead, that's just great.
P.S. Here, I drew a crappy stone-giant in Paint, which shows how much I suck at freehanding with a mouse, and not much else (his one foot looks particularly painful):
Hopefully just a posting glitch 
