If you have a replica Spectral Tiger card, you can take custom pictures for the buyer and even show it on webcam, if you dare.
It is possible to buy custom trading cards online. You can buy 5 cards for 10 bucks by the following companies:
SitePrint.com- Custom Trading Card Maker
MyTradingCards.com - Make Your Custom Trading Cards
You need luck because the Spectral Tiger card is copyrighted, and the companies have a reason to refuse the service. It could be smart to remove the copyright statement with photoshop, so the companies think that the card is of your own design.