Pa++ern is a new project by Daito Manabe and Motoi Ishibashi. They basically hooked up an embroidery machine with Twitter. A special language was developed to encode designs in the 140 character limit of Twitter. I guess the images below show you how it works.
You can go and see it from this Saturday on at the Beams Gallery in Tokyo.
On the left you can see the tweet: [ <<<^],+[vv],[^],+[>],[v], >>+n[^],[>],vvv[<],vvv+[n>], >>+[^],, >>+[v],, [>^<]>,>n+[>],[v],[<n],[^].
And on the right the graphical translation.
Of course, some more complex designs are possible too.