A guy named Guy emailed me to let me know about his web video series called Coolest Thing I've Ever Made, which "showcases regular people who built incredible things." The latest episode features "a guy in Toronto that builds a life size T-Rex out of balloons (it was a very long 18 hour shoot) and before we even shot he'd spent 2 days prior making the legs, head, tail, etc..."
The other episodes look cool, too: an island made of plastic bottles, a 747 Pan Am replica, a backyard suspension bridge, and a Delorean hovercraft.