I did see something like that, but not here. We were at DH's fav. rest/pub and the cashier had on their shirt but it was like it was tye died. Her shirt was black and then she put the rubber bands on it like a tye die and put it in some bleach. I guess if you do somethign similar. Figure out a way to make the disign and the hard part would be to not get bleach on other parts of the shirt.
try googling it. I did and came up w/ a lot of different pages/directions.