Moo.com

Okay, so I was looking around for Adobe Illustrator Tutorials (and I gotta say, http://vector.tutsplus.com/ is awesome!) and I found this one tutorial about MiniCards but this company called Moo.

So obviously I checked it out, and they are pretty nifty! For $20 you get 100 MiniCards of size [2.8 cm x 7 com] and the great part is you can design them anyway you want! All you have to do is save pictures of whatever you want on your cards (pictures, illustrations, text) and then upload them when they ask you to, and you're hours away from getting your own MiniCards! I haven't tried this yet, but I will definitely do it when I can.

They also had sticker sets.. it's pretty cool, check it out.