You can still preorder F.A.T. Mats for pick-up at NOVA from novaopenstore.com, saving you the cost of shipping. F.A.T. Mats are produced by Frontline Gaming / Tablewar.
Presales end on August 20 and you CANNOT purchase them on-site
Additionally, the NOVA has a couple of limited edition NOVA Open tagged mats that were crafted for this year in X-Wing and Magic: The Gathering. As of now, these can ONLY be acquired on site at the NOVA and will only be available in limited quantities!
Magic: The Gathering; art courtesy of former NOVA Intern Andres Jiminez; mat courtesy of Ebenezer's Emporium: