Yep, got mine as part of deal too. But our American counterparts get mats with an actual silver Z emblem, pretty cool too.
Try
Japanparts.com - Mail order from Japan directly|JDM Parts,Performance Auto Parts,for Subaru, Mazda,Mitsubishi,Honda,Nissan,Toyota car, they have pretty good selection. Bought my Z key chain from them. Prompt delivery too