Kaywa.com: 'Create your own two-dimensional bar code — free'

That's right, a no-strings-attached free two-dimensional bar code generator for you to use to create your very own interconnected world.

"Type in a Web address or up to 250 characters of text and it spits back the corresponding code block, which can be printed or embedded into a Web site," wrote Rob Walker in his March 30, 2008 New York Times magazine "Consumed" column.

We like free.

Forget about embedding into a Web site — I'm having mine (top) tattooed on my forehead.

Get out your scanners, gang.

Oh, yeah, one more thing: Pre-order Walker's new book (below) so he can make a big splash on the best-seller lists when it comes out in June — he needs the money.

Who knows?

He might even send me a copy.