I have no information of any FLAC t-shirt. However, you may be interested in grabbing the FLAC logo[1], vectorize it using a program like Inkscape, and then create your own t-shirt design. And if it's cool, you should put it online for others to use it. -Ivo [1] http://upload.wikimedia.org/wikipedia/commons/2/29/FLAC_logo.png