Assuming by now you have heard of semacodes or QR codes. No? QR codes are a new type of bar-code you can scan with your cell phone to get the phone to execute some sort of function. It is most often used to get the phone to open a webpage. Just scan (shoot) the code and the phone opens the URL. QR codes are widely used in europe and asia but are slowly starting to appear in the americas.
This little app connects your code with your fbook profile - then uses Zazzle to throw it on a tshirt! (The shirts encode the URL of your mobile facebook page.)
Awesome. Now I can go to advertising industry parties and literally speak to no one. :)
Want to make one for yerself? Here.