For those interested in Cryptozoic cards like Big Bang Theory, The Walking Dead to name a few check the link on the blogroll to the side of the page for how you can request an NPN from Cryptozoic restricted to US only, except individuals who reside in Arizona, Florida, New York, and Rhode Island. -Edit- 8/15/13 Possible they allow now just read the rules for yourself at the time of this post restrictions above applied.

Good luck!!