I don't know if anyone would actually ever pay money for them, and you'd have to know for double sure you that you wouldn't look like a total dick if you send them, but I'm still laughing and glad they made them.
Not enough to make me break down and actually join Facebook or whatever, but still.
Send Bluntcards to your friends, "back and forth all day long until your boss finds out and you get fired." [bluntcard.com via dt reader rolf]