I am also highly interested in this topic, as I've been playing around with some custom cards as well, but nothing nearly as nice as TheFrenzy's.
I even got a promotional eBay card a few weeks ago that was printed really nice, glossy and everything.
Just to be able to print something that looks like 1989 Topps Baseball is all I want, but the fancier stuff is also interesting!
Collecting: wrestling Divas and Superstars (WCW, WWF, WWE, ECW, TNA), celebrities, NBA, & football
Currently Own: 417 different single-subject Diva cards: 87 different Divas; 83 living Divas, 4 deceased Divas RIP