I downloaded them from somewhere else, and I can't remember where, but I have models of the Banshee, Goliath, Terran Siege Tank (Transforms from tank to siege mode and back), Thor, Vulture, Battlecruiser, Gateway, Hydralisk, Immortal, Marauder, SC II Siege tank (Non transformable), SCV, Stalker, Terran Autocannon, Void Ray, and Wraith.
Because I downloaded them from many different places, and never saved the links, I'm not sure I could upload them here. I certainly can't take credit for designing them. That's a Zathros question, so ask him.
The siege tank is actually qot me into paper modeling in the first place. I wanted a siege tank for my 28mm gaming army. It took me a 2-day hunt to find it, and the rest is history...