CGTrader Ultimaker contest

CGTrader is running a 3D modeling contest with 4 grand prizes of Ultimaker 3D printers. The contest is open, design whatever you want and if you impress them you might win. Never heard of CGTrader before? Neither had I. But browsing their site they seem to be a place where you can buy 3D models. Their focus seems to have been on models for 3D rendering and animation but now apparently they want beef up their 3D printable offerings. Fair enough. I find their pricing a bit inconsistent and considerably higher than I'd be willing to shell out. But if you're inclined to make high quality 3D models that print well then feel free to beef up your portfolio and enter.