Hi folks!
Great forum / community, I'm a "newbie", but wanted to share a build that my son and I put together: Iron Man's Hulkbuster I.
The original idea and credit belongs to an acquaintance of mine from another site (though I am wary of not encroaching on any of this website's rules, so I will refrain from any more detail -- but please do feel free to PM me and I can properly reference it).
The basis for 85-90% of this build is from Kai's Fire Mech (70500) http://shop.lego.com...Fire-Mech-70500 -- for instance the body (which holds the Iron Man minifig) substantially the legs and arms (with some re-purposing of various pieces).