this card by nutn(actually, i don't know the name of the designer, but that's the name of their photo album so it'll have to do) is cool and i'm pretty sure it's not just a card but some sort of woodblock print which makes it even more special.
also i really loved this polaroid camera inspired card by room design:
it even comes with a little card that you can put a photo on like it's a real polaroid(and pull it through a slit in the camera card). they had the camera it's based on sitting on their table. i couldn't help but stare at it. i guess this is just another confirmation of what a camera geek i've become.