Why just send a card when you can have fun entrapping yourself and your friends in a handy-dandy spam pit. Both you and they will wonder where the junk mail comes from that suddenly appears in your boxes. You'll be scaird to extricate yourselves and when you find more cute cards you'll just send them on spreading this opt-in-by deceit grabage further or will you... This is a mockup of a typical spam form. It goes nowhere, thankfully, but once you've seen this here, you'll recognize it elsewhere and hopefully steer clear of the real thing.
And now of course, you get to send others into the spam pit, after you take a bath yourself. Here you go. Just hit the magic button and you can ensnare your friends.