This card may look like a simple abstract design, but look closer and you'll see that the pattern is a reproduction of an LCD screen. Which means you can do this:

 

[$5, Urban Outfitters]

... along with any other salutary combination of letters that will fit into sixteen LCD squares. These innovative cards are created by Yellow Owl Workshop, a San Francisco-based stationer that sells a whole line of snazzy debossed works.

The best part? Unlike a real LCD screen, these cards won't crap out and tell you that it's 81 minutes after L o'clock. 

[via Swissmiss]

Related: Another Effing Greeting Card, I Love You (But I Can't Say It Aloud), It Would Be So Great to See You!